113240253 has 8 divisors (see below), whose sum is σ = 172556608. Its totient is φ = 64708704.

The previous prime is 113240221. The next prime is 113240261. The reversal of 113240253 is 352042311.

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

It is not a de Polignac number, because 113240253 - 2⁵ = 113240221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5392393 = 113240253 / (1 + 1 + 3 + 2 + 4 + 0 + 2 + 5 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113240203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2696176 + ... + 2696217.

It is an arithmetic number, because the mean of its divisors is an integer number (21569576).

Almost surely, 2^113240253 is an apocalyptic number.

It is an amenable number.

113240253 is a deficient number, since it is larger than the sum of its proper divisors (59316355).

113240253 is an equidigital number, since it uses as much as digits as its factorization.

113240253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5392403.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 113240253 is about 10641.4403630336. The cubic root of 113240253 is about 483.8012027074.

Adding to 113240253 its reverse (352042311), we get a palindrome (465282564).

The spelling of 113240253 in words is "one hundred thirteen million, two hundred forty thousand, two hundred fifty-three".