45435431 has 4 divisors (see below), whose sum is σ = 47002200. Its totient is φ = 43868664.

The previous prime is 45435427. The next prime is 45435433. The reversal of 45435431 is 13453454.

45435431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45435431 - 2² = 45435427 is a prime.

It is a super-2 number, since 2×45435431² = 4128756780311522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 1566739 = 45435431 / (4 + 5 + 4 + 3 + 5 + 4 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45435394 and 45435403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45435433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 783341 + ... + 783398.

It is an arithmetic number, because the mean of its divisors is an integer number (11750550).

Almost surely, 2^45435431 is an apocalyptic number.

45435431 is a deficient number, since it is larger than the sum of its proper divisors (1566769).

45435431 is a wasteful number, since it uses less digits than its factorization.

45435431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566768.

The product of its digits is 14400, while the sum is 29.

The square root of 45435431 is about 6740.5809096843. The cubic root of 45435431 is about 356.8328955063.

Adding to 45435431 its reverse (13453454), we get a palindrome (58888885).

The spelling of 45435431 in words is "forty-five million, four hundred thirty-five thousand, four hundred thirty-one".