118148257 has 2 divisors, whose sum is σ = 118148258. Its totient is φ = 118148256.

The previous prime is 118148243. The next prime is 118148273. The reversal of 118148257 is 752841811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70040161 + 48108096 = 8369^2 + 6936^2 .

It is a cyclic number.

It is not a de Polignac number, because 118148257 - 2¹⁵ = 118115489 is a prime.

It is not a weakly prime, because it can be changed into another prime (118148287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59074128 + 59074129.

It is an arithmetic number, because the mean of its divisors is an integer number (59074129).

Almost surely, 2^118148257 is an apocalyptic number.

It is an amenable number.

118148257 is a deficient number, since it is larger than the sum of its proper divisors (1).

118148257 is an equidigital number, since it uses as much as digits as its factorization.

118148257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17920, while the sum is 37.

The square root of 118148257 is about 10869.6024306320. The cubic root of 118148257 is about 490.6921455535.

The spelling of 118148257 in words is "one hundred eighteen million, one hundred forty-eight thousand, two hundred fifty-seven".