45116731 has 8 divisors (see below), whose sum is σ = 51358464. Its totient is φ = 39231720.

The previous prime is 45116723. The next prime is 45116783. The reversal of 45116731 is 13761154.

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

It is not a de Polignac number, because 45116731 - 2³ = 45116723 is a prime.

It is a super-2 number, since 2×45116731² = 4071038832252722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45116731.

It is not an unprimeable number, because it can be changed into a prime (45116711) 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, 88911 + ... + 89416.

It is an arithmetic number, because the mean of its divisors is an integer number (6419808).

Almost surely, 2^45116731 is an apocalyptic number.

45116731 is a deficient number, since it is larger than the sum of its proper divisors (6241733).

45116731 is a wasteful number, since it uses less digits than its factorization.

45116731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178361.

The product of its digits is 2520, while the sum is 28.

The square root of 45116731 is about 6716.8989124446. The cubic root of 45116731 is about 355.9966202389.

Adding to 45116731 its reverse (13761154), we get a palindrome (58877885).

The spelling of 45116731 in words is "forty-five million, one hundred sixteen thousand, seven hundred thirty-one".