113666051 has 4 divisors (see below), whose sum is σ = 117585600. Its totient is φ = 109746504.

The previous prime is 113666041. The next prime is 113666089. The reversal of 113666051 is 150666311.

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

It is a cyclic number.

It is not a de Polignac number, because 113666051 - 2⁶ = 113665987 is a prime.

It is a super-2 number, since 2×113666051² = 25839942299869202, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 3919519 = 113666051 / (1 + 1 + 3 + 6 + 6 + 6 + 0 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113666011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1959731 + ... + 1959788.

It is an arithmetic number, because the mean of its divisors is an integer number (29396400).

Almost surely, 2^113666051 is an apocalyptic number.

113666051 is a deficient number, since it is larger than the sum of its proper divisors (3919549).

113666051 is an equidigital number, since it uses as much as digits as its factorization.

113666051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3919548.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 113666051 is about 10661.4281876304. The cubic root of 113666051 is about 484.4068292979.

The spelling of 113666051 in words is "one hundred thirteen million, six hundred sixty-six thousand, fifty-one".