113391551 has 8 divisors (see below), whose sum is σ = 139558944. Its totient is φ = 89716320.

The previous prime is 113391517. The next prime is 113391571. The reversal of 113391551 is 155193311.

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 113391551 - 2²² = 109197247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113391511) 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, 622940 + ... + 623121.

It is an arithmetic number, because the mean of its divisors is an integer number (17444868).

Almost surely, 2^113391551 is an apocalyptic number.

113391551 is a deficient number, since it is larger than the sum of its proper divisors (26167393).

113391551 is a wasteful number, since it uses less digits than its factorization.

113391551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246081.

The product of its digits is 2025, while the sum is 29.

The square root of 113391551 is about 10648.5468961732. The cubic root of 113391551 is about 484.0165724694.

The spelling of 113391551 in words is "one hundred thirteen million, three hundred ninety-one thousand, five hundred fifty-one".