113138671 has 4 divisors (see below), whose sum is σ = 113164344. Its totient is φ = 113113000.

The previous prime is 113138653. The next prime is 113138677. The reversal of 113138671 is 176831311.

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 113138671 - 2¹⁵ = 113105903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113138677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4360 + ... + 15661.

It is an arithmetic number, because the mean of its divisors is an integer number (28291086).

Almost surely, 2^113138671 is an apocalyptic number.

113138671 is a deficient number, since it is larger than the sum of its proper divisors (25673).

113138671 is an equidigital number, since it uses as much as digits as its factorization.

113138671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25672.

The product of its digits is 3024, while the sum is 31.

The square root of 113138671 is about 10636.6663480623. Note that the first 3 decimals coincide. The cubic root of 113138671 is about 483.6564950465.

Adding to 113138671 its reverse (176831311), we get a palindrome (289969982).

The spelling of 113138671 in words is "one hundred thirteen million, one hundred thirty-eight thousand, six hundred seventy-one".