45031111571 has 4 divisors (see below), whose sum is σ = 45048216792. Its totient is φ = 45014006352.

The previous prime is 45031111547. The next prime is 45031111583. The reversal of 45031111571 is 17511113054.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45031111571 - 2⁶ = 45031111507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45031111771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8548661 + ... + 8553926.

It is an arithmetic number, because the mean of its divisors is an integer number (11262054198).

Almost surely, 2^45031111571 is an apocalyptic number.

45031111571 is a deficient number, since it is larger than the sum of its proper divisors (17105221).

45031111571 is a wasteful number, since it uses less digits than its factorization.

45031111571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17105220.

The product of its (nonzero) digits is 2100, while the sum is 29.

The spelling of 45031111571 in words is "forty-five billion, thirty-one million, one hundred eleven thousand, five hundred seventy-one".