45143553531 has 16 divisors (see below), whose sum is σ = 63030387456. Its totient is φ = 28685459616.

The previous prime is 45143553529. The next prime is 45143553563. The reversal of 45143553531 is 13535534154.

It is not a de Polignac number, because 45143553531 - 2¹ = 45143553529 is a prime.

It is a super-2 number, since 2×45143553531² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45143553531.

It is not an unprimeable number, because it can be changed into a prime (45143543531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1136400 + ... + 1175453.

It is an arithmetic number, because the mean of its divisors is an integer number (3939399216).

Almost surely, 2^45143553531 is an apocalyptic number.

45143553531 is a deficient number, since it is larger than the sum of its proper divisors (17886833925).

45143553531 is a wasteful number, since it uses less digits than its factorization.

45143553531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312162.

The product of its digits is 270000, while the sum is 39.

The spelling of 45143553531 in words is "forty-five billion, one hundred forty-three million, five hundred fifty-three thousand, five hundred thirty-one".