99461131 has 48 divisors (see below), whose sum is σ = 134742528. Its totient is φ = 72441600.

The previous prime is 99461123. The next prime is 99461147. The reversal of 99461131 is 13116499.

It is a happy number.

It is not a de Polignac number, because 99461131 - 2³ = 99461123 is a prime.

It is a super-2 number, since 2×99461131² = 19785033159598322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

99461131 is a modest number, since divided by 61131 gives 994 as remainder.

It is not an unprimeable number, because it can be changed into a prime (99461111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 880131 + ... + 880243.

It is an arithmetic number, because the mean of its divisors is an integer number (2807136).

Almost surely, 2^99461131 is an apocalyptic number.

99461131 is a deficient number, since it is larger than the sum of its proper divisors (35281397).

99461131 is a wasteful number, since it uses less digits than its factorization.

99461131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 225 counting only the distinct ones).

The product of its digits is 5832, while the sum is 34.

The square root of 99461131 is about 9973.0201543966. The cubic root of 99461131 is about 463.3236451689.

The spelling of 99461131 in words is "ninety-nine million, four hundred sixty-one thousand, one hundred thirty-one".