99137497 has 4 divisors (see below), whose sum is σ = 104355280. Its totient is φ = 93919716.

The previous prime is 99137471. The next prime is 99137503. The reversal of 99137497 is 79473199.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99137497 - 2⁷ = 99137369 is a prime.

It is a super-2 number, since 2×99137497² = 19656486622850018, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99137497.

It is not an unprimeable number, because it can be changed into a prime (99137407) 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 3 ways as a sum of consecutive naturals, for example, 2608863 + ... + 2608900.

It is an arithmetic number, because the mean of its divisors is an integer number (26088820).

Almost surely, 2^99137497 is an apocalyptic number.

It is an amenable number.

99137497 is a deficient number, since it is larger than the sum of its proper divisors (5217783).

99137497 is a wasteful number, since it uses less digits than its factorization.

99137497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5217782.

The product of its digits is 428652, while the sum is 49.

The square root of 99137497 is about 9956.7814578809. The cubic root of 99137497 is about 462.8205668500.

The spelling of 99137497 in words is "ninety-nine million, one hundred thirty-seven thousand, four hundred ninety-seven".