45349431 has 4 divisors (see below), whose sum is σ = 60465912. Its totient is φ = 30232952.

The previous prime is 45349429. The next prime is 45349433. The reversal of 45349431 is 13494354.

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

It is an interprime number because it is at equal distance from previous prime (45349429) and next prime (45349433).

It is a cyclic number.

It is not a de Polignac number, because 45349431 - 2¹ = 45349429 is a prime.

It is a super-2 number, since 2×45349431² = 4113141784047522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45349392 and 45349401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45349433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7558236 + ... + 7558241.

It is an arithmetic number, because the mean of its divisors is an integer number (15116478).

Almost surely, 2^45349431 is an apocalyptic number.

45349431 is a deficient number, since it is larger than the sum of its proper divisors (15116481).

45349431 is a wasteful number, since it uses less digits than its factorization.

45349431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15116480.

The product of its digits is 25920, while the sum is 33.

The square root of 45349431 is about 6734.1986160196. The cubic root of 45349431 is about 356.6076160234.

It can be divided in two parts, 4 and 5349431, that added together give a palindrome (5349435).

The spelling of 45349431 in words is "forty-five million, three hundred forty-nine thousand, four hundred thirty-one".