545214043531 has 4 divisors (see below), whose sum is σ = 552115487200. Its totient is φ = 538312599864.

The previous prime is 545214043519. The next prime is 545214043571. The reversal of 545214043531 is 135340412545.

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

It is a cyclic number.

It is not a de Polignac number, because 545214043531 - 2⁷ = 545214043403 is a prime.

It is a super-2 number, since 2×545214043531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545214043571) 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, 3450721716 + ... + 3450721873.

It is an arithmetic number, because the mean of its divisors is an integer number (138028871800).

Almost surely, 2^545214043531 is an apocalyptic number.

545214043531 is a deficient number, since it is larger than the sum of its proper divisors (6901443669).

545214043531 is an equidigital number, since it uses as much as digits as its factorization.

545214043531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6901443668.

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 545214043531 in words is "five hundred forty-five billion, two hundred fourteen million, forty-three thousand, five hundred thirty-one".