118590257 has 4 divisors (see below), whose sum is σ = 119192436. Its totient is φ = 117988080.

The previous prime is 118590247. The next prime is 118590271. The reversal of 118590257 is 752095811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102900736 + 15689521 = 10144^2 + 3961^2 .

It is a cyclic number.

It is not a de Polignac number, because 118590257 - 2¹² = 118586161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118590257.

It is not an unprimeable number, because it can be changed into a prime (118590247) 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, 300794 + ... + 301187.

It is an arithmetic number, because the mean of its divisors is an integer number (29798109).

Almost surely, 2^118590257 is an apocalyptic number.

It is an amenable number.

118590257 is a deficient number, since it is larger than the sum of its proper divisors (602179).

118590257 is an equidigital number, since it uses as much as digits as its factorization.

118590257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602178.

The product of its (nonzero) digits is 25200, while the sum is 38.

The square root of 118590257 is about 10889.9153807548. The cubic root of 118590257 is about 491.3032873886.

The spelling of 118590257 in words is "one hundred eighteen million, five hundred ninety thousand, two hundred fifty-seven".