45031571 has 24 divisors (see below), whose sum is σ = 51219504. Its totient is φ = 39536640.

The previous prime is 45031559. The next prime is 45031607. The reversal of 45031571 is 17513054.

It is not a de Polignac number, because 45031571 - 2⁶ = 45031507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45031571.

It is not an unprimeable number, because it can be changed into a prime (45031531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 464195 + ... + 464291.

It is an arithmetic number, because the mean of its divisors is an integer number (2134146).

Almost surely, 2^45031571 is an apocalyptic number.

45031571 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

45031571 is a deficient number, since it is larger than the sum of its proper divisors (6187933).

45031571 is a wasteful number, since it uses less digits than its factorization.

45031571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 45031571 is about 6710.5566833162. The cubic root of 45031571 is about 355.7724922472.

The spelling of 45031571 in words is "forty-five million, thirty-one thousand, five hundred seventy-one".