99012174243 has 32 divisors (see below), whose sum is σ = 140436426240. Its totient is φ = 61911083520.

The previous prime is 99012174221. The next prime is 99012174263. The reversal of 99012174243 is 34247121099.

It is a happy number.

It is a Cunningham number, because it is equal to 314662²-1.

It is not a de Polignac number, because 99012174243 - 2²⁸ = 98743738787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99012174195 and 99012174204.

It is not an unprimeable number, because it can be changed into a prime (99012174263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7230363 + ... + 7244043.

It is an arithmetic number, because the mean of its divisors is an integer number (4388638320).

Almost surely, 2^99012174243 is an apocalyptic number.

99012174243 is a deficient number, since it is larger than the sum of its proper divisors (41424251997).

99012174243 is a wasteful number, since it uses less digits than its factorization.

99012174243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15739.

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 99012174243 in words is "ninety-nine billion, twelve million, one hundred seventy-four thousand, two hundred forty-three".