45431301531 has 24 divisors (see below), whose sum is σ = 76870776384. Its totient is φ = 23600675280.

The previous prime is 45431301511. The next prime is 45431301541. The reversal of 45431301531 is 13510313454.

It is not a de Polignac number, because 45431301531 - 2⁵ = 45431301499 is a prime.

It is a super-2 number, since 2×45431301531² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45431301511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14046405 + ... + 14049638.

It is an arithmetic number, because the mean of its divisors is an integer number (3202949016).

Almost surely, 2^45431301531 is an apocalyptic number.

45431301531 is a deficient number, since it is larger than the sum of its proper divisors (31439474853).

45431301531 is a wasteful number, since it uses less digits than its factorization.

45431301531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28096071 (or 28096064 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 45431301531 its reverse (13510313454), we get a palindrome (58941614985).

The spelling of 45431301531 in words is "forty-five billion, four hundred thirty-one million, three hundred one thousand, five hundred thirty-one".