113261187 has 8 divisors (see below), whose sum is σ = 162631504. Its totient is φ = 69699168.

The previous prime is 113261171. The next prime is 113261227. The reversal of 113261187 is 781162311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113261187 - 2⁴ = 113261171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113261087) 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 7 ways as a sum of consecutive naturals, for example, 1452028 + ... + 1452105.

It is an arithmetic number, because the mean of its divisors is an integer number (20328938).

Almost surely, 2^113261187 is an apocalyptic number.

113261187 is a deficient number, since it is larger than the sum of its proper divisors (49370317).

113261187 is a wasteful number, since it uses less digits than its factorization.

113261187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904149.

The product of its digits is 2016, while the sum is 30.

The square root of 113261187 is about 10642.4239250276. The cubic root of 113261187 is about 483.8310132800.

The spelling of 113261187 in words is "one hundred thirteen million, two hundred sixty-one thousand, one hundred eighty-seven".