162090971 has 24 divisors (see below), whose sum is σ = 206119296. Its totient is φ = 126524160.

The previous prime is 162090967. The next prime is 162090979. The reversal of 162090971 is 179090261.

It is not a de Polignac number, because 162090971 - 2² = 162090967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162090979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22685 + ... + 28961.

It is an arithmetic number, because the mean of its divisors is an integer number (8588304).

Almost surely, 2^162090971 is an apocalyptic number.

162090971 is a deficient number, since it is larger than the sum of its proper divisors (44028325).

162090971 is a wasteful number, since it uses less digits than its factorization.

162090971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6339 (or 6332 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 162090971 is about 12731.4952381879. The cubic root of 162090971 is about 545.2381990501.

The spelling of 162090971 in words is "one hundred sixty-two million, ninety thousand, nine hundred seventy-one".