45031617 has 6 divisors (see below), whose sum is σ = 65045682. Its totient is φ = 30021072.

The previous prime is 45031607. The next prime is 45031619. The reversal of 45031617 is 71613054.

45031617 is a `hidden beast` number, since 45 + 0 + 3 + 1 + 617 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31371201 + 13660416 = 5601^2 + 3696^2 .

It is not a de Polignac number, because 45031617 - 2⁸ = 45031361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45031619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2501748 + ... + 2501765.

It is an arithmetic number, because the mean of its divisors is an integer number (10840947).

Almost surely, 2^45031617 is an apocalyptic number.

It is an amenable number.

45031617 is a deficient number, since it is larger than the sum of its proper divisors (20014065).

45031617 is a wasteful number, since it uses less digits than its factorization.

45031617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003519 (or 5003516 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 45031617 is about 6710.5601107508. The cubic root of 45031617 is about 355.7726133884.

The spelling of 45031617 in words is "forty-five million, thirty-one thousand, six hundred seventeen".