168790131 has 6 divisors (see below), whose sum is σ = 243807980. Its totient is φ = 112526748.

The previous prime is 168790099. The next prime is 168790151. The reversal of 168790131 is 131097861.

It is not a de Polignac number, because 168790131 - 2⁵ = 168790099 is a prime.

It is a super-2 number, since 2×168790131² = 56980216645994322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168790151) 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 5 ways as a sum of consecutive naturals, for example, 9377221 + ... + 9377238.

Almost surely, 2^168790131 is an apocalyptic number.

168790131 is a deficient number, since it is larger than the sum of its proper divisors (75017849).

168790131 is a wasteful number, since it uses less digits than its factorization.

168790131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18754465 (or 18754462 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 168790131 is about 12991.9256078535. The cubic root of 168790131 is about 552.6485269145.

It can be divided in two parts, 168790 and 131, that added together give a square (168921 = 411²).

The spelling of 168790131 in words is "one hundred sixty-eight million, seven hundred ninety thousand, one hundred thirty-one".