99949137 has 8 divisors (see below), whose sum is σ = 141104736. Its totient is φ = 62713152.

The previous prime is 99949133. The next prime is 99949153. The reversal of 99949137 is 73194999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99949137 - 2² = 99949133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 1959787 = 99949137 / (9 + 9 + 9 + 4 + 9 + 1 + 3 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 99949137.

It is not an unprimeable number, because it can be changed into a prime (99949133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 979843 + ... + 979944.

It is an arithmetic number, because the mean of its divisors is an integer number (17638092).

Almost surely, 2^99949137 is an apocalyptic number.

It is an amenable number.

99949137 is a deficient number, since it is larger than the sum of its proper divisors (41155599).

99949137 is a wasteful number, since it uses less digits than its factorization.

99949137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1959807.

The product of its digits is 551124, while the sum is 51.

The square root of 99949137 is about 9997.4565265371. The cubic root of 99949137 is about 464.0801749710.

The spelling of 99949137 in words is "ninety-nine million, nine hundred forty-nine thousand, one hundred thirty-seven".