162576961 has 2 divisors, whose sum is σ = 162576962. Its totient is φ = 162576960.

The previous prime is 162576959. The next prime is 162576971. The reversal of 162576961 is 169675261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162307600 + 269361 = 12740^2 + 519^2 .

It is a cyclic number.

It is not a de Polignac number, because 162576961 - 2¹ = 162576959 is a prime.

Together with 162576959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (162576971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81288480 + 81288481.

It is an arithmetic number, because the mean of its divisors is an integer number (81288481).

Almost surely, 2^162576961 is an apocalyptic number.

It is an amenable number.

162576961 is a deficient number, since it is larger than the sum of its proper divisors (1).

162576961 is an equidigital number, since it uses as much as digits as its factorization.

162576961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The square root of 162576961 is about 12750.5670854280. The cubic root of 162576961 is about 545.7825763316.

The spelling of 162576961 in words is "one hundred sixty-two million, five hundred seventy-six thousand, nine hundred sixty-one".