118317253 has 4 divisors (see below), whose sum is σ = 120549708. Its totient is φ = 116084800.

The previous prime is 118317239. The next prime is 118317271. The reversal of 118317253 is 352713811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 352713811 = 5639 ⋅62549.

It can be written as a sum of positive squares in 2 ways, for example, as 50452609 + 67864644 = 7103^2 + 8238^2 .

It is a cyclic number.

It is not a de Polignac number, because 118317253 - 2⁹ = 118316741 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 (118317203) 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, 1116148 + ... + 1116253.

It is an arithmetic number, because the mean of its divisors is an integer number (30137427).

Almost surely, 2^118317253 is an apocalyptic number.

It is an amenable number.

118317253 is a deficient number, since it is larger than the sum of its proper divisors (2232455).

118317253 is an equidigital number, since it uses as much as digits as its factorization.

118317253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232454.

The product of its digits is 5040, while the sum is 31.

The square root of 118317253 is about 10877.3734421505. The cubic root of 118317253 is about 490.9259915857.

The spelling of 118317253 in words is "one hundred eighteen million, three hundred seventeen thousand, two hundred fifty-three".