45107631 has 8 divisors (see below), whose sum is σ = 66826160. Its totient is φ = 30071736.

The previous prime is 45107627. The next prime is 45107633. The reversal of 45107631 is 13670154.

45107631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45107631 - 2² = 45107627 is a prime.

It is a super-2 number, since 2×45107631² = 4069396748864322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1670653 = 45107631 / (4 + 5 + 1 + 0 + 7 + 6 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45107595 and 45107604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45107633) 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 7 ways as a sum of consecutive naturals, for example, 835300 + ... + 835353.

It is an arithmetic number, because the mean of its divisors is an integer number (8353270).

Almost surely, 2^45107631 is an apocalyptic number.

45107631 is a deficient number, since it is larger than the sum of its proper divisors (21718529).

45107631 is a wasteful number, since it uses less digits than its factorization.

45107631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670662 (or 1670656 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 45107631 is about 6716.2214823515. The cubic root of 45107631 is about 355.9726839075.

Adding to 45107631 its reverse (13670154), we get a palindrome (58777785).

The spelling of 45107631 in words is "forty-five million, one hundred seven thousand, six hundred thirty-one".