113899203935449 has 9 divisors (see below), whose sum is σ = 120209623148853. Its totient is φ = 107904316889052.

The previous prime is 113899203935423. The next prime is 113899203935467. The reversal of 113899203935449 is 944539302998311.

It is a happy number.

The square root of 113899203935449 is 10672357.

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

It is not a de Polignac number, because 113899203935449 - 2¹⁷ = 113899203804377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113899203935149) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 202493932 + ... + 203055634.

It is an arithmetic number, because the mean of its divisors is an integer number (13356624794317).

Almost surely, 2^{113899203935449} is an apocalyptic number.

113899203935449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

113899203935449 is the 10672357-th square number.

113899203935449 is the 5336179-th centered octagonal number.

It is an amenable number.

113899203935449 is a deficient number, since it is larger than the sum of its proper divisors (6310419213404).

113899203935449 is an frugal number, since it uses more digits than its factorization.

113899203935449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123444 (or 561722 counting only the distinct ones).

The product of its (nonzero) digits is 226748160, while the sum is 70.

The spelling of 113899203935449 in words is "one hundred thirteen trillion, eight hundred ninety-nine billion, two hundred three million, nine hundred thirty-five thousand, four hundred forty-nine".