45664231 has 4 divisors (see below), whose sum is σ = 45681832. Its totient is φ = 45646632.

The previous prime is 45664211. The next prime is 45664259. The reversal of 45664231 is 13246654.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13246654 = 2 ⋅6623327.

It is a cyclic number.

It is not a de Polignac number, because 45664231 - 2⁷ = 45664103 is a prime.

It is a super-2 number, since 2×45664231² = 4170443985642722, 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 = 45664193 and 45664202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45664211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4056 + ... + 10381.

It is an arithmetic number, because the mean of its divisors is an integer number (11420458).

Almost surely, 2^45664231 is an apocalyptic number.

45664231 is a deficient number, since it is larger than the sum of its proper divisors (17601).

45664231 is a wasteful number, since it uses less digits than its factorization.

45664231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17600.

The product of its digits is 17280, while the sum is 31.

The square root of 45664231 is about 6757.5314279698. The cubic root of 45664231 is about 357.4308627938.

The spelling of 45664231 in words is "forty-five million, six hundred sixty-four thousand, two hundred thirty-one".