162920971 has 4 divisors (see below), whose sum is σ = 164502832. Its totient is φ = 161339112.

The previous prime is 162920969. The next prime is 162920977. The reversal of 162920971 is 179029261.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 162920971 - 2¹ = 162920969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 162920971.

It is not an unprimeable number, because it can be changed into a prime (162920977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790776 + ... + 790981.

It is an arithmetic number, because the mean of its divisors is an integer number (41125708).

Almost surely, 2^162920971 is an apocalyptic number.

162920971 is a deficient number, since it is larger than the sum of its proper divisors (1581861).

162920971 is a wasteful number, since it uses less digits than its factorization.

162920971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581860.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 162920971 is about 12764.0499450605. The cubic root of 162920971 is about 546.1672605859.

The spelling of 162920971 in words is "one hundred sixty-two million, nine hundred twenty thousand, nine hundred seventy-one".