99813140 has 24 divisors (see below), whose sum is σ = 239551872. Its totient is φ = 34221600.

The previous prime is 99813139. The next prime is 99813193. The reversal of 99813140 is 4131899.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 99813140.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356336 + ... + 356615.

It is an arithmetic number, because the mean of its divisors is an integer number (9981328).

Almost surely, 2^99813140 is an apocalyptic number.

It is an amenable number.

99813140 is an abundant number, since it is smaller than the sum of its proper divisors (139738732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99813140 is a wasteful number, since it uses less digits than its factorization.

99813140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712967 (or 712965 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 99813140 is about 9990.6526313350. The cubic root of 99813140 is about 463.8695940012.

The spelling of 99813140 in words is "ninety-nine million, eight hundred thirteen thousand, one hundred forty".