99400137 has 4 divisors (see below), whose sum is σ = 132533520. Its totient is φ = 66266756.

The previous prime is 99400127. The next prime is 99400163. The reversal of 99400137 is 73100499.

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 99400137 - 2⁷ = 99400009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99400098 and 99400107.

It is not an unprimeable number, because it can be changed into a prime (99400117) 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, 16566687 + ... + 16566692.

It is an arithmetic number, because the mean of its divisors is an integer number (33133380).

Almost surely, 2^99400137 is an apocalyptic number.

It is an amenable number.

99400137 is a deficient number, since it is larger than the sum of its proper divisors (33133383).

99400137 is a wasteful number, since it uses less digits than its factorization.

99400137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33133382.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 99400137 is about 9969.9617351322. The cubic root of 99400137 is about 463.2289155633.

The spelling of 99400137 in words is "ninety-nine million, four hundred thousand, one hundred thirty-seven".