118837261 has 2 divisors, whose sum is σ = 118837262. Its totient is φ = 118837260.

The previous prime is 118837237. The next prime is 118837309. The reversal of 118837261 is 162738811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117614025 + 1223236 = 10845^2 + 1106^2 .

It is a cyclic number.

It is not a de Polignac number, because 118837261 - 2⁷ = 118837133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118837261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118837661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59418630 + 59418631.

It is an arithmetic number, because the mean of its divisors is an integer number (59418631).

Almost surely, 2^118837261 is an apocalyptic number.

It is an amenable number.

118837261 is a deficient number, since it is larger than the sum of its proper divisors (1).

118837261 is an equidigital number, since it uses as much as digits as its factorization.

118837261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 37.

The square root of 118837261 is about 10901.2504328632. The cubic root of 118837261 is about 491.6441521562.

The spelling of 118837261 in words is "one hundred eighteen million, eight hundred thirty-seven thousand, two hundred sixty-one".