118227857 has 4 divisors (see below), whose sum is σ = 128975856. Its totient is φ = 107479860.

The previous prime is 118227847. The next prime is 118227859. The reversal of 118227857 is 758722811.

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.

It is a cyclic number.

It is not a de Polignac number, because 118227857 - 2⁶ = 118227793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118227859) 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, 5373983 + ... + 5374004.

It is an arithmetic number, because the mean of its divisors is an integer number (32243964).

Almost surely, 2^118227857 is an apocalyptic number.

It is an amenable number.

118227857 is a deficient number, since it is larger than the sum of its proper divisors (10747999).

118227857 is a wasteful number, since it uses less digits than its factorization.

118227857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10747998.

The product of its digits is 62720, while the sum is 41.

The square root of 118227857 is about 10873.2634015736. The cubic root of 118227857 is about 490.8023187864.

The spelling of 118227857 in words is "one hundred eighteen million, two hundred twenty-seven thousand, eight hundred fifty-seven".