118807621 has 2 divisors, whose sum is σ = 118807622. Its totient is φ = 118807620.

The previous prime is 118807571. The next prime is 118807631. The reversal of 118807621 is 126708811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110040100 + 8767521 = 10490^2 + 2961^2 .

It is a cyclic number.

It is not a de Polignac number, because 118807621 - 2¹¹ = 118805573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118807631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59403810 + 59403811.

It is an arithmetic number, because the mean of its divisors is an integer number (59403811).

Almost surely, 2^118807621 is an apocalyptic number.

It is an amenable number.

118807621 is a deficient number, since it is larger than the sum of its proper divisors (1).

118807621 is an equidigital number, since it uses as much as digits as its factorization.

118807621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 34.

The square root of 118807621 is about 10899.8908710133. The cubic root of 118807621 is about 491.6032739999.

The spelling of 118807621 in words is "one hundred eighteen million, eight hundred seven thousand, six hundred twenty-one".