113691147 has 4 divisors (see below), whose sum is σ = 151588200. Its totient is φ = 75794096.

The previous prime is 113691143. The next prime is 113691163. The reversal of 113691147 is 741196311.

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 113691147 - 2² = 113691143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113691143) 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 3 ways as a sum of consecutive naturals, for example, 18948522 + ... + 18948527.

It is an arithmetic number, because the mean of its divisors is an integer number (37897050).

Almost surely, 2^113691147 is an apocalyptic number.

113691147 is a deficient number, since it is larger than the sum of its proper divisors (37897053).

113691147 is an equidigital number, since it uses as much as digits as its factorization.

113691147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37897052.

The product of its digits is 4536, while the sum is 33.

The square root of 113691147 is about 10662.6050756839. The cubic root of 113691147 is about 484.4424769374.

The spelling of 113691147 in words is "one hundred thirteen million, six hundred ninety-one thousand, one hundred forty-seven".