45375731 has 4 divisors (see below), whose sum is σ = 45394752. Its totient is φ = 45356712.

The previous prime is 45375709. The next prime is 45375751. The reversal of 45375731 is 13757354.

45375731 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 a de Polignac number, because none of the positive numbers 2^k-45375731 is a prime.

It is a super-2 number, since 2×45375731² = 4117913927568722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45375691 and 45375700.

It is not an unprimeable number, because it can be changed into a prime (45375751) 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, 5315 + ... + 10908.

It is an arithmetic number, because the mean of its divisors is an integer number (11348688).

Almost surely, 2^45375731 is an apocalyptic number.

45375731 is a deficient number, since it is larger than the sum of its proper divisors (19021).

45375731 is a wasteful number, since it uses less digits than its factorization.

45375731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19020.

The product of its digits is 44100, while the sum is 35.

The square root of 45375731 is about 6736.1510523444. The cubic root of 45375731 is about 356.6765398418.

It can be divided in two parts, 4 and 5375731, that added together give a palindrome (5375735).

The spelling of 45375731 in words is "forty-five million, three hundred seventy-five thousand, seven hundred thirty-one".