152366021 has 2 divisors, whose sum is σ = 152366022. Its totient is φ = 152366020.

The previous prime is 152366017. The next prime is 152366033. The reversal of 152366021 is 120663251.

152366021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151536100 + 829921 = 12310^2 + 911^2 .

It is a cyclic number.

It is not a de Polignac number, because 152366021 - 2² = 152366017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152366321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76183010 + 76183011.

It is an arithmetic number, because the mean of its divisors is an integer number (76183011).

Almost surely, 2^152366021 is an apocalyptic number.

It is an amenable number.

152366021 is a deficient number, since it is larger than the sum of its proper divisors (1).

152366021 is an equidigital number, since it uses as much as digits as its factorization.

152366021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 152366021 is about 12343.6631920998. The cubic root of 152366021 is about 534.1083596211.

The spelling of 152366021 in words is "one hundred fifty-two million, three hundred sixty-six thousand, twenty-one".