118880621 has 2 divisors, whose sum is σ = 118880622. Its totient is φ = 118880620.

The previous prime is 118880611. The next prime is 118880647. The reversal of 118880621 is 126088811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91202500 + 27678121 = 9550^2 + 5261^2 .

It is a cyclic number.

It is not a de Polignac number, because 118880621 - 2¹⁸ = 118618477 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118880611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59440310 + 59440311.

It is an arithmetic number, because the mean of its divisors is an integer number (59440311).

Almost surely, 2^118880621 is an apocalyptic number.

It is an amenable number.

118880621 is a deficient number, since it is larger than the sum of its proper divisors (1).

118880621 is an equidigital number, since it uses as much as digits as its factorization.

118880621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 35.

The square root of 118880621 is about 10903.2390141646. The cubic root of 118880621 is about 491.7039400770.

The spelling of 118880621 in words is "one hundred eighteen million, eight hundred eighty thousand, six hundred twenty-one".