162908961 has 8 divisors (see below), whose sum is σ = 217300704. Its totient is φ = 108561600.

The previous prime is 162908957. The next prime is 162908969. The reversal of 162908961 is 169809261.

162908961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 162908961 - 2² = 162908957 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (162908969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1291 + ... + 18096.

It is an arithmetic number, because the mean of its divisors is an integer number (27162588).

Almost surely, 2^162908961 is an apocalyptic number.

It is an amenable number.

162908961 is a deficient number, since it is larger than the sum of its proper divisors (54391743).

162908961 is a wasteful number, since it uses less digits than its factorization.

162908961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22191.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 162908961 is about 12763.5794744264. The cubic root of 162908961 is about 546.1538397026.

The spelling of 162908961 in words is "one hundred sixty-two million, nine hundred eight thousand, nine hundred sixty-one".