45131454631 has 4 divisors (see below), whose sum is σ = 45896394600. Its totient is φ = 44366514664.

The previous prime is 45131454617. The next prime is 45131454637. The reversal of 45131454631 is 13645413154.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45131454631 is a prime.

It is a super-2 number, since 2×45131454631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45131454637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 382469896 + ... + 382470013.

It is an arithmetic number, because the mean of its divisors is an integer number (11474098650).

Almost surely, 2^45131454631 is an apocalyptic number.

45131454631 is a deficient number, since it is larger than the sum of its proper divisors (764939969).

45131454631 is an equidigital number, since it uses as much as digits as its factorization.

45131454631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764939968.

The product of its digits is 86400, while the sum is 37.

Adding to 45131454631 its reverse (13645413154), we get a palindrome (58776867785).

The spelling of 45131454631 in words is "forty-five billion, one hundred thirty-one million, four hundred fifty-four thousand, six hundred thirty-one".