99419139 has 24 divisors (see below), whose sum is σ = 151703552. Its totient is φ = 62642160.

The previous prime is 99419123. The next prime is 99419161. The reversal of 99419139 is 93191499.

It is not a de Polignac number, because 99419139 - 2⁴ = 99419123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99419094 and 99419103.

It is not an unprimeable number, because it can be changed into a prime (99419239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7854 + ... + 16140.

Almost surely, 2^99419139 is an apocalyptic number.

99419139 is a deficient number, since it is larger than the sum of its proper divisors (52284413).

99419139 is a wasteful number, since it uses less digits than its factorization.

99419139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8367 (or 8364 counting only the distinct ones).

The product of its digits is 78732, while the sum is 45.

The square root of 99419139 is about 9970.9146521270. The cubic root of 99419139 is about 463.2584316695.

The spelling of 99419139 in words is "ninety-nine million, four hundred nineteen thousand, one hundred thirty-nine".