162660431 has 2 divisors, whose sum is σ = 162660432. Its totient is φ = 162660430.

The previous prime is 162660427. The next prime is 162660461. The reversal of 162660431 is 134066261.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 162660431 - 2² = 162660427 is a prime.

It is a super-2 number, since 2×162660431² = 52916831626211522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 162660394 and 162660403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162660461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81330215 + 81330216.

It is an arithmetic number, because the mean of its divisors is an integer number (81330216).

Almost surely, 2^162660431 is an apocalyptic number.

162660431 is a deficient number, since it is larger than the sum of its proper divisors (1).

162660431 is an equidigital number, since it uses as much as digits as its factorization.

162660431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 162660431 is about 12753.8398531580. The cubic root of 162660431 is about 545.8759652864.

The spelling of 162660431 in words is "one hundred sixty-two million, six hundred sixty thousand, four hundred thirty-one".