163245492131 has 4 divisors (see below), whose sum is σ = 163248967200. Its totient is φ = 163242017064.

The previous prime is 163245492097. The next prime is 163245492143. The reversal of 163245492131 is 131294542361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131294542361 = 184687 ⋅710903.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163245492131 is a prime.

It is a super-2 number, since 2×163245492131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163245392131) 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, 1666091 + ... + 1761348.

It is an arithmetic number, because the mean of its divisors is an integer number (40812241800).

Almost surely, 2^163245492131 is an apocalyptic number.

163245492131 is a deficient number, since it is larger than the sum of its proper divisors (3475069).

163245492131 is an equidigital number, since it uses as much as digits as its factorization.

163245492131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3475068.

The product of its digits is 155520, while the sum is 41.

The spelling of 163245492131 in words is "one hundred sixty-three billion, two hundred forty-five million, four hundred ninety-two thousand, one hundred thirty-one".