118065261 has 24 divisors (see below), whose sum is σ = 164761312. Its totient is φ = 75146400.

The previous prime is 118065257. The next prime is 118065271. The reversal of 118065261 is 162560811.

It is not a de Polignac number, because 118065261 - 2² = 118065257 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 (118065251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 559446 + ... + 559656.

Almost surely, 2^118065261 is an apocalyptic number.

It is an amenable number.

118065261 is a deficient number, since it is larger than the sum of its proper divisors (46696051).

118065261 is an equidigital number, since it uses as much as digits as its factorization.

118065261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 118065261 is about 10865.7839569909. The cubic root of 118065261 is about 490.5772192559.

The spelling of 118065261 in words is "one hundred eighteen million, sixty-five thousand, two hundred sixty-one".