99125138653 has 8 divisors (see below), whose sum is σ = 106676620920. Its totient is φ = 91764833280.

The previous prime is 99125138647. The next prime is 99125138677. The reversal of 99125138653 is 35683152199.

It can be written as a sum of positive squares in 4 ways, for example, as 8907206884 + 90217931769 = 94378^2 + 300363^2 .

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 99125138653 - 2⁹ = 99125138141 is a prime.

It is a super-2 number, since 2×99125138653² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99125138653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99125138633) 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, 47793148 + ... + 47795221.

It is an arithmetic number, because the mean of its divisors is an integer number (13334577615).

Almost surely, 2^99125138653 is an apocalyptic number.

It is an amenable number.

99125138653 is a deficient number, since it is larger than the sum of its proper divisors (7551482267).

99125138653 is a wasteful number, since it uses less digits than its factorization.

99125138653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95588447.

The product of its digits is 1749600, while the sum is 52.

The spelling of 99125138653 in words is "ninety-nine billion, one hundred twenty-five million, one hundred thirty-eight thousand, six hundred fifty-three".