162080391 has 32 divisors (see below), whose sum is σ = 245203200. Its totient is φ = 94330880.

The previous prime is 162080377. The next prime is 162080407. The reversal of 162080391 is 193080261.

It is a cyclic number.

It is not a de Polignac number, because 162080391 - 2¹⁸ = 161818247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162080341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 245620 + ... + 246278.

It is an arithmetic number, because the mean of its divisors is an integer number (7662600).

Almost surely, 2^162080391 is an apocalyptic number.

162080391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

162080391 is a deficient number, since it is larger than the sum of its proper divisors (83122809).

162080391 is a wasteful number, since it uses less digits than its factorization.

162080391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 162080391 is about 12731.0797264018. The cubic root of 162080391 is about 545.2263358648.

The spelling of 162080391 in words is "one hundred sixty-two million, eighty thousand, three hundred ninety-one".