113305251 has 8 divisors (see below), whose sum is σ = 151220304. Its totient is φ = 75463520.

The previous prime is 113305249. The next prime is 113305259. The reversal of 113305251 is 152503311.

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

It is a cyclic number.

It is not a de Polignac number, because 113305251 - 2¹ = 113305249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113305259) 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 7 ways as a sum of consecutive naturals, for example, 14616 + ... + 20981.

It is an arithmetic number, because the mean of its divisors is an integer number (18902538).

Almost surely, 2^113305251 is an apocalyptic number.

113305251 is a deficient number, since it is larger than the sum of its proper divisors (37915053).

113305251 is a wasteful number, since it uses less digits than its factorization.

113305251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36661.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 113305251 is about 10644.4939287878. The cubic root of 113305251 is about 483.8937495864.

Adding to 113305251 its reverse (152503311), we get a palindrome (265808562).

The spelling of 113305251 in words is "one hundred thirteen million, three hundred five thousand, two hundred fifty-one".