118466021 has 2 divisors, whose sum is σ = 118466022. Its totient is φ = 118466020.

The previous prime is 118466017. The next prime is 118466059. The reversal of 118466021 is 120664811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105863521 + 12602500 = 10289^2 + 3550^2 .

It is a cyclic number.

It is not a de Polignac number, because 118466021 - 2² = 118466017 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118466071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59233010 + 59233011.

It is an arithmetic number, because the mean of its divisors is an integer number (59233011).

Almost surely, 2^118466021 is an apocalyptic number.

It is an amenable number.

118466021 is a deficient number, since it is larger than the sum of its proper divisors (1).

118466021 is an equidigital number, since it uses as much as digits as its factorization.

118466021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 118466021 is about 10884.2097094828. The cubic root of 118466021 is about 491.1316631657.

The spelling of 118466021 in words is "one hundred eighteen million, four hundred sixty-six thousand, twenty-one".