162243131 has 2 divisors, whose sum is σ = 162243132. Its totient is φ = 162243130.

The previous prime is 162243101. The next prime is 162243149. The reversal of 162243131 is 131342261.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 162243131 - 2²⁶ = 95134267 is a prime.

It is a super-2 number, since 2×162243131² = 52645667113366322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 162243097 and 162243106.

It is not a weakly prime, because it can be changed into another prime (162243101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81121565 + 81121566.

It is an arithmetic number, because the mean of its divisors is an integer number (81121566).

Almost surely, 2^162243131 is an apocalyptic number.

162243131 is a deficient number, since it is larger than the sum of its proper divisors (1).

162243131 is an equidigital number, since it uses as much as digits as its factorization.

162243131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 23.

The square root of 162243131 is about 12737.4695681678. The cubic root of 162243131 is about 545.4087565612.

Adding to 162243131 its reverse (131342261), we get a palindrome (293585392).

The spelling of 162243131 in words is "one hundred sixty-two million, two hundred forty-three thousand, one hundred thirty-one".