45239787 has 12 divisors (see below), whose sum is σ = 65642304. Its totient is φ = 30023280.

The previous prime is 45239783. The next prime is 45239791. The reversal of 45239787 is 78793254.

It is an interprime number because it is at equal distance from previous prime (45239783) and next prime (45239791).

It is not a de Polignac number, because 45239787 - 2² = 45239783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45239783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9264 + ... + 13277.

It is an arithmetic number, because the mean of its divisors is an integer number (5470192).

Almost surely, 2^45239787 is an apocalyptic number.

45239787 is a deficient number, since it is larger than the sum of its proper divisors (20402517).

45239787 is a wasteful number, since it uses less digits than its factorization.

45239787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22770 (or 22767 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 45239787 is about 6726.0528543864. The cubic root of 45239787 is about 356.3199869885.

The spelling of 45239787 in words is "forty-five million, two hundred thirty-nine thousand, seven hundred eighty-seven".