45911831 has 8 divisors (see below), whose sum is σ = 53691264. Its totient is φ = 38437560.

The previous prime is 45911821. The next prime is 45911867. The reversal of 45911831 is 13811954.

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-45911831 is a prime.

It is a super-2 number, since 2×45911831² = 4215792451545122, 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 (45911821) 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, 75965 + ... + 76566.

It is an arithmetic number, because the mean of its divisors is an integer number (6711408).

Almost surely, 2^45911831 is an apocalyptic number.

45911831 is a deficient number, since it is larger than the sum of its proper divisors (7779433).

45911831 is a wasteful number, since it uses less digits than its factorization.

45911831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152581.

The product of its digits is 4320, while the sum is 32.

The square root of 45911831 is about 6775.8269606005. The cubic root of 45911831 is about 358.0757176798.

The spelling of 45911831 in words is "forty-five million, nine hundred eleven thousand, eight hundred thirty-one".