99940135 has 8 divisors (see below), whose sum is σ = 121446720. Its totient is φ = 78939744.

The previous prime is 99940121. The next prime is 99940151. The reversal of 99940135 is 53104999.

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

It is a cyclic number.

It is not a de Polignac number, because 99940135 - 2⁷ = 99940007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126112 + ... + 126901.

It is an arithmetic number, because the mean of its divisors is an integer number (15180840).

Almost surely, 2^99940135 is an apocalyptic number.

99940135 is a deficient number, since it is larger than the sum of its proper divisors (21506585).

99940135 is a wasteful number, since it uses less digits than its factorization.

99940135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253097.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 99940135 is about 9997.0063018886. The cubic root of 99940135 is about 464.0662419671.

The spelling of 99940135 in words is "ninety-nine million, nine hundred forty thousand, one hundred thirty-five".