118853457 has 4 divisors (see below), whose sum is σ = 158471280. Its totient is φ = 79235636.

The previous prime is 118853447. The next prime is 118853461. The reversal of 118853457 is 754358811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 754358811 = 3 ⋅251452937.

It is a cyclic number.

It is not a de Polignac number, because 118853457 - 2¹² = 118849361 is a prime.

It is a super-2 number, since 2×118853457² = 28252288481701698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118853407) 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, 19808907 + ... + 19808912.

It is an arithmetic number, because the mean of its divisors is an integer number (39617820).

Almost surely, 2^118853457 is an apocalyptic number.

It is an amenable number.

118853457 is a deficient number, since it is larger than the sum of its proper divisors (39617823).

118853457 is an equidigital number, since it uses as much as digits as its factorization.

118853457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39617822.

The product of its digits is 134400, while the sum is 42.

The square root of 118853457 is about 10901.9932581157. The cubic root of 118853457 is about 491.6664860799. Note that the first 3 decimals are identical.

It can be divided in two parts, 1188 and 53457, that added together give a palindrome (54645).

The spelling of 118853457 in words is "one hundred eighteen million, eight hundred fifty-three thousand, four hundred fifty-seven".