45127631 has 2 divisors, whose sum is σ = 45127632. Its totient is φ = 45127630.

The previous prime is 45127627. The next prime is 45127637. The reversal of 45127631 is 13672154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45127631 - 2² = 45127627 is a prime.

It is a super-2 number, since 2×45127631² = 4073006159344322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 45127594 and 45127603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45127637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22563815 + 22563816.

It is an arithmetic number, because the mean of its divisors is an integer number (22563816).

Almost surely, 2^45127631 is an apocalyptic number.

45127631 is a deficient number, since it is larger than the sum of its proper divisors (1).

45127631 is an equidigital number, since it uses as much as digits as its factorization.

45127631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 45127631 is about 6717.7102497801. The cubic root of 45127631 is about 356.0252869931.

Adding to 45127631 its reverse (13672154), we get a palindrome (58799785).

It can be divided in two parts, 451 and 27631, that added together give a palindrome (28082).

The spelling of 45127631 in words is "forty-five million, one hundred twenty-seven thousand, six hundred thirty-one".