131163999 has 8 divisors (see below), whose sum is σ = 175008000. Its totient is φ = 87381336.

The previous prime is 131163997. The next prime is 131164037. The reversal of 131163999 is 999361131.

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

It is not a de Polignac number, because 131163999 - 2¹ = 131163997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131163999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131163997) 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, 10087 + ... + 19080.

It is an arithmetic number, because the mean of its divisors is an integer number (21876000).

Almost surely, 2^131163999 is an apocalyptic number.

131163999 is a deficient number, since it is larger than the sum of its proper divisors (43844001).

131163999 is a wasteful number, since it uses less digits than its factorization.

131163999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30669.

The product of its digits is 39366, while the sum is 42.

The square root of 131163999 is about 11452.6852309840. The cubic root of 131163999 is about 508.0871559288.

The spelling of 131163999 in words is "one hundred thirty-one million, one hundred sixty-three thousand, nine hundred ninety-nine".