45931487 has 8 divisors (see below), whose sum is σ = 52534272. Its totient is φ = 39339000.

The previous prime is 45931471. The next prime is 45931499. The reversal of 45931487 is 78413954.

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 45931487 - 2⁴ = 45931471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45930487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15062 + ... + 17852.

It is an arithmetic number, because the mean of its divisors is an integer number (6566784).

Almost surely, 2^45931487 is an apocalyptic number.

45931487 is a deficient number, since it is larger than the sum of its proper divisors (6602785).

45931487 is a wasteful number, since it uses less digits than its factorization.

45931487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5149.

The product of its digits is 120960, while the sum is 41.

The square root of 45931487 is about 6777.2772556536. The cubic root of 45931487 is about 358.1268107711.

The spelling of 45931487 in words is "forty-five million, nine hundred thirty-one thousand, four hundred eighty-seven".