99461531 has 16 divisors (see below), whose sum is σ = 110412288. Its totient is φ = 89011200.

The previous prime is 99461521. The next prime is 99461563. The reversal of 99461531 is 13516499.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99461531 is a prime.

It is a super-2 number, since 2×99461531² = 19785192297727922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99461501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101315 + ... + 102291.

It is an arithmetic number, because the mean of its divisors is an integer number (6900768).

Almost surely, 2^99461531 is an apocalyptic number.

99461531 is a deficient number, since it is larger than the sum of its proper divisors (10950757).

99461531 is a wasteful number, since it uses less digits than its factorization.

99461531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222.

The product of its digits is 29160, while the sum is 38.

The square root of 99461531 is about 9973.0402084821. The cubic root of 99461531 is about 463.3242662799.

The spelling of 99461531 in words is "ninety-nine million, four hundred sixty-one thousand, five hundred thirty-one".