162390131 has 8 divisors (see below), whose sum is σ = 171085200. Its totient is φ = 153709920.

The previous prime is 162390127. The next prime is 162390133. The reversal of 162390131 is 131093261.

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

It is a cyclic number.

It is not a de Polignac number, because 162390131 - 2² = 162390127 is a prime.

It is a super-2 number, since 2×162390131² = 52741109292394322, which contains 22 as substring.

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 162390131.

It is not an unprimeable number, because it can be changed into a prime (162390133) 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, 24161 + ... + 30141.

It is an arithmetic number, because the mean of its divisors is an integer number (21385650).

Almost surely, 2^162390131 is an apocalyptic number.

162390131 is a deficient number, since it is larger than the sum of its proper divisors (8695069).

162390131 is a wasteful number, since it uses less digits than its factorization.

162390131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7429.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 162390131 is about 12743.2386385879. The cubic root of 162390131 is about 545.5734289364.

The spelling of 162390131 in words is "one hundred sixty-two million, three hundred ninety thousand, one hundred thirty-one".