45609431 has 8 divisors (see below), whose sum is σ = 53922720. Its totient is φ = 37745568.

The previous prime is 45609359. The next prime is 45609439. The reversal of 45609431 is 13490654.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-45609431 is a prime.

It is a super-2 number, since 2×45609431² = 4160440392287522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45609439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112136 + ... + 112541.

It is an arithmetic number, because the mean of its divisors is an integer number (6740340).

Almost surely, 2^45609431 is an apocalyptic number.

45609431 is a deficient number, since it is larger than the sum of its proper divisors (8313289).

45609431 is a wasteful number, since it uses less digits than its factorization.

45609431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224713.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 45609431 is about 6753.4754756347. The cubic root of 45609431 is about 357.2878255896.

The spelling of 45609431 in words is "forty-five million, six hundred nine thousand, four hundred thirty-one".