113413251 has 16 divisors (see below), whose sum is σ = 177492224. Its totient is φ = 63055584.

The previous prime is 113413247. The next prime is 113413271. The reversal of 113413251 is 152314311.

It is not a de Polignac number, because 113413251 - 2² = 113413247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (113413271) 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 15 ways as a sum of consecutive naturals, for example, 72205 + ... + 73758.

It is an arithmetic number, because the mean of its divisors is an integer number (11093264).

Almost surely, 2^113413251 is an apocalyptic number.

113413251 is a deficient number, since it is larger than the sum of its proper divisors (64078973).

113413251 is a wasteful number, since it uses less digits than its factorization.

113413251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146010.

The product of its digits is 360, while the sum is 21.

The square root of 113413251 is about 10649.5657657953. The cubic root of 113413251 is about 484.0474462856.

Adding to 113413251 its reverse (152314311), we get a palindrome (265727562).

The spelling of 113413251 in words is "one hundred thirteen million, four hundred thirteen thousand, two hundred fifty-one".