252321061 has 2 divisors, whose sum is σ = 252321062. Its totient is φ = 252321060.

The previous prime is 252320951. The next prime is 252321073. The reversal of 252321061 is 160123252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173448900 + 78872161 = 13170^2 + 8881^2 .

It is a cyclic number.

It is not a de Polignac number, because 252321061 - 2¹⁷ = 252189989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252321161) 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, 126160530 + 126160531.

It is an arithmetic number, because the mean of its divisors is an integer number (126160531).

Almost surely, 2^252321061 is an apocalyptic number.

It is an amenable number.

252321061 is a deficient number, since it is larger than the sum of its proper divisors (1).

252321061 is an equidigital number, since it uses as much as digits as its factorization.

252321061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 252321061 is about 15884.6171184577. The cubic root of 252321061 is about 631.9040915257.

The spelling of 252321061 in words is "two hundred fifty-two million, three hundred twenty-one thousand, sixty-one".