113409751 has 8 divisors (see below), whose sum is σ = 139581344. Its totient is φ = 89730720.

The previous prime is 113409739. The next prime is 113409809. The reversal of 113409751 is 157904311.

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 113409751 - 2⁵ = 113409719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113406751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623040 + ... + 623221.

It is an arithmetic number, because the mean of its divisors is an integer number (17447668).

Almost surely, 2^113409751 is an apocalyptic number.

113409751 is a deficient number, since it is larger than the sum of its proper divisors (26171593).

113409751 is a wasteful number, since it uses less digits than its factorization.

113409751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246281.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 113409751 is about 10649.4014385786. The cubic root of 113409751 is about 484.0424669042.

The spelling of 113409751 in words is "one hundred thirteen million, four hundred nine thousand, seven hundred fifty-one".