118557233 has 2 divisors, whose sum is σ = 118557234. Its totient is φ = 118557232.

The previous prime is 118557217. The next prime is 118557247. The reversal of 118557233 is 332755811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104509729 + 14047504 = 10223^2 + 3748^2 .

It is a cyclic number.

It is not a de Polignac number, because 118557233 - 2⁴ = 118557217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118557193 and 118557202.

It is not a weakly prime, because it can be changed into another prime (118557253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59278616 + 59278617.

It is an arithmetic number, because the mean of its divisors is an integer number (59278617).

Almost surely, 2^118557233 is an apocalyptic number.

It is an amenable number.

118557233 is a deficient number, since it is larger than the sum of its proper divisors (1).

118557233 is an equidigital number, since it uses as much as digits as its factorization.

118557233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 35.

The square root of 118557233 is about 10888.3990099555. The cubic root of 118557233 is about 491.2576785096.

The spelling of 118557233 in words is "one hundred eighteen million, five hundred fifty-seven thousand, two hundred thirty-three".