118253861 has 8 divisors (see below), whose sum is σ = 130930464. Its totient is φ = 105898320.

The previous prime is 118253857. The next prime is 118253867. The reversal of 118253861 is 168352811.

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

It is not a de Polignac number, because 118253861 - 2² = 118253857 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 (118253867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79490 + ... + 80963.

It is an arithmetic number, because the mean of its divisors is an integer number (16366308).

Almost surely, 2^118253861 is an apocalyptic number.

118253861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

118253861 is a deficient number, since it is larger than the sum of its proper divisors (12676603).

118253861 is a wasteful number, since it uses less digits than its factorization.

118253861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160531.

The product of its digits is 11520, while the sum is 35.

The square root of 118253861 is about 10874.4591129858. The cubic root of 118253861 is about 490.8382998381.

The spelling of 118253861 in words is "one hundred eighteen million, two hundred fifty-three thousand, eight hundred sixty-one".