223161462531 has 32 divisors (see below), whose sum is σ = 381580531200. Its totient is φ = 126258242400.

The previous prime is 223161462521. The next prime is 223161462539. The reversal of 223161462531 is 135264161322.

223161462531 is a `hidden beast` number, since 2 + 2 + 3 + 1 + 61 + 4 + 62 + 531 = 666.

It is not a de Polignac number, because 223161462531 - 2¹³ = 223161454339 is a prime.

It is a super-3 number, since 3×223161462531³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (223161462539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5826201 + ... + 5864378.

It is an arithmetic number, because the mean of its divisors is an integer number (11924391600).

Almost surely, 2^223161462531 is an apocalyptic number.

223161462531 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

223161462531 is a deficient number, since it is larger than the sum of its proper divisors (158419068669).

223161462531 is a wasteful number, since it uses less digits than its factorization.

223161462531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11690696 (or 11690690 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The spelling of 223161462531 in words is "two hundred twenty-three billion, one hundred sixty-one million, four hundred sixty-two thousand, five hundred thirty-one".