99152439 has 4 divisors (see below), whose sum is σ = 132203256. Its totient is φ = 66101624.

The previous prime is 99152419. The next prime is 99152441. The reversal of 99152439 is 93425199.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99152439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99152439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99152419) 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, 16525404 + ... + 16525409.

It is an arithmetic number, because the mean of its divisors is an integer number (33050814).

Almost surely, 2^99152439 is an apocalyptic number.

99152439 is a deficient number, since it is larger than the sum of its proper divisors (33050817).

99152439 is a wasteful number, since it uses less digits than its factorization.

99152439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33050816.

The product of its digits is 87480, while the sum is 42.

The square root of 99152439 is about 9957.5317724826. The cubic root of 99152439 is about 462.8438177816.

The spelling of 99152439 in words is "ninety-nine million, one hundred fifty-two thousand, four hundred thirty-nine".