169422961 has 2 divisors, whose sum is σ = 169422962. Its totient is φ = 169422960.

The previous prime is 169422923. The next prime is 169422971. The reversal of 169422961 is 169224961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138509361 + 30913600 = 11769^2 + 5560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-169422961 is a prime.

It is not a weakly prime, because it can be changed into another prime (169422971) 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, 84711480 + 84711481.

It is an arithmetic number, because the mean of its divisors is an integer number (84711481).

Almost surely, 2^169422961 is an apocalyptic number.

It is an amenable number.

169422961 is a deficient number, since it is larger than the sum of its proper divisors (1).

169422961 is an equidigital number, since it uses as much as digits as its factorization.

169422961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 169422961 is about 13016.2575650607. The cubic root of 169422961 is about 553.3383310705.

The spelling of 169422961 in words is "one hundred sixty-nine million, four hundred twenty-two thousand, nine hundred sixty-one".