113802998409 has 15 divisors (see below), whose sum is σ = 170006545533. Its totient is φ = 75866641524.

The previous prime is 113802998389. The next prime is 113802998411. The reversal of 113802998409 is 904899208311.

The square root of 113802998409 is 337347.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 113802998409 - 2⁹ = 113802997897 is a prime.

It is a super-2 number, since 2×113802998409² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113802998209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 3017382 + ... + 3054864.

Almost surely, 2^113802998409 is an apocalyptic number.

113802998409 is the 337347-th square number.

113802998409 is the 168674-th centered octagonal number.

It is an amenable number.

113802998409 is a deficient number, since it is larger than the sum of its proper divisors (56203547124).

113802998409 is an frugal number, since it uses more digits than its factorization.

113802998409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74978 (or 37486 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The spelling of 113802998409 in words is "one hundred thirteen billion, eight hundred two million, nine hundred ninety-eight thousand, four hundred nine".