45031647 has 8 divisors (see below), whose sum is σ = 60117120. Its totient is φ = 29983640.

The previous prime is 45031633. The next prime is 45031661. The reversal of 45031647 is 74613054.

It is an interprime number because it is at equal distance from previous prime (45031633) and next prime (45031661).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45031647 - 2⁸ = 45031391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45031607) 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, 6429 + ... + 11462.

It is an arithmetic number, because the mean of its divisors is an integer number (7514640).

Almost surely, 2^45031647 is an apocalyptic number.

45031647 is a deficient number, since it is larger than the sum of its proper divisors (15085473).

45031647 is a wasteful number, since it uses less digits than its factorization.

45031647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18733.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 45031647 is about 6710.5623460333. The cubic root of 45031647 is about 355.7726923934.

The spelling of 45031647 in words is "forty-five million, thirty-one thousand, six hundred forty-seven".