45712491 has 16 divisors (see below), whose sum is σ = 66624768. Its totient is φ = 27648800.

The previous prime is 45712487. The next prime is 45712493. The reversal of 45712491 is 19421754.

It is a happy number.

45712491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 45712491 - 2² = 45712487 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (45712493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20281 + ... + 22421.

It is an arithmetic number, because the mean of its divisors is an integer number (4164048).

Almost surely, 2^45712491 is an apocalyptic number.

45712491 is a deficient number, since it is larger than the sum of its proper divisors (20912277).

45712491 is a wasteful number, since it uses less digits than its factorization.

45712491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802.

The product of its digits is 10080, while the sum is 33.

The square root of 45712491 is about 6761.1013156142. The cubic root of 45712491 is about 357.5567347648.

The spelling of 45712491 in words is "forty-five million, seven hundred twelve thousand, four hundred ninety-one".