113722409 has 4 divisors (see below), whose sum is σ = 114728916. Its totient is φ = 112715904.

The previous prime is 113722379. The next prime is 113722417. The reversal of 113722409 is 904227311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9784384 + 103938025 = 3128^2 + 10195^2 .

It is a cyclic number.

It is not a de Polignac number, because 113722409 - 2¹² = 113718313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113722009) 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, 503084 + ... + 503309.

It is an arithmetic number, because the mean of its divisors is an integer number (28682229).

Almost surely, 2^113722409 is an apocalyptic number.

It is an amenable number.

113722409 is a deficient number, since it is larger than the sum of its proper divisors (1006507).

113722409 is a wasteful number, since it uses less digits than its factorization.

113722409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006506.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 113722409 is about 10664.0709393739. The cubic root of 113722409 is about 484.4868757412.

The spelling of 113722409 in words is "one hundred thirteen million, seven hundred twenty-two thousand, four hundred nine".