113909449 has 4 divisors (see below), whose sum is σ = 115281936. Its totient is φ = 112536964.

The previous prime is 113909443. The next prime is 113909459. The reversal of 113909449 is 944909311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 944909311 = 19 ⋅49732069.

It is a cyclic number.

It is not a de Polignac number, because 113909449 - 2³ = 113909441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113909441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686119 + ... + 686284.

It is an arithmetic number, because the mean of its divisors is an integer number (28820484).

Almost surely, 2^113909449 is an apocalyptic number.

It is an amenable number.

113909449 is a deficient number, since it is larger than the sum of its proper divisors (1372487).

113909449 is an equidigital number, since it uses as much as digits as its factorization.

113909449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372486.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 113909449 is about 10672.8369705529. The cubic root of 113909449 is about 484.7523431812.

The spelling of 113909449 in words is "one hundred thirteen million, nine hundred nine thousand, four hundred forty-nine".