113781867 has 16 divisors (see below), whose sum is σ = 161276832. Its totient is φ = 71106560.

The previous prime is 113781859. The next prime is 113781893. The reversal of 113781867 is 768187311.

It is a cyclic number.

It is not a de Polignac number, because 113781867 - 2³ = 113781859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113781817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8767 + ... + 17447.

It is an arithmetic number, because the mean of its divisors is an integer number (10079802).

Almost surely, 2^113781867 is an apocalyptic number.

113781867 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

113781867 is a deficient number, since it is larger than the sum of its proper divisors (47494965).

113781867 is a wasteful number, since it uses less digits than its factorization.

113781867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8958.

The product of its digits is 56448, while the sum is 42.

The square root of 113781867 is about 10666.8583472361. The cubic root of 113781867 is about 484.5712965163.

The spelling of 113781867 in words is "one hundred thirteen million, seven hundred eighty-one thousand, eight hundred sixty-seven".