993000131 has 4 divisors (see below), whose sum is σ = 1004964072. Its totient is φ = 981036192.

The previous prime is 993000109. The next prime is 993000179. The reversal of 993000131 is 131000399.

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 993000131 - 2²² = 988805827 is a prime.

It is a super-2 number, since 2×993000131² = 1972098520332034322, 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 993000131.

It is not an unprimeable number, because it can be changed into a prime (993000181) 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, 5981846 + ... + 5982011.

It is an arithmetic number, because the mean of its divisors is an integer number (251241018).

Almost surely, 2^993000131 is an apocalyptic number.

993000131 is a deficient number, since it is larger than the sum of its proper divisors (11963941).

993000131 is a wasteful number, since it uses less digits than its factorization.

993000131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11963940.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 993000131 is about 31511.9045917571. The cubic root of 993000131 is about 997.6612448217.

The spelling of 993000131 in words is "nine hundred ninety-three million, one hundred thirty-one", and thus it is an aban number.