99000131 has 4 divisors (see below), whose sum is σ = 100868112. Its totient is φ = 97132152.

The previous prime is 99000107. The next prime is 99000137. The reversal of 99000131 is 13100099.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13100099 = 2087 ⋅6277.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99000131 is a prime.

It is a super-2 number, since 2×99000131² = 19602051876034322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99000097 and 99000106.

It is not an unprimeable number, because it can be changed into a prime (99000137) 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, 933911 + ... + 934016.

It is an arithmetic number, because the mean of its divisors is an integer number (25217028).

Almost surely, 2^99000131 is an apocalyptic number.

99000131 is a deficient number, since it is larger than the sum of its proper divisors (1867981).

99000131 is a wasteful number, since it uses less digits than its factorization.

99000131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1867980.

The product of its (nonzero) digits is 243, while the sum is 23.

The square root of 99000131 is about 9949.8809540617. The cubic root of 99000131 is about 462.6067049635.

The spelling of 99000131 in words is "ninety-nine million, one hundred thirty-one", and thus it is an aban number.