252320149 has 2 divisors, whose sum is σ = 252320150. Its totient is φ = 252320148.

The previous prime is 252320147. The next prime is 252320179. The reversal of 252320149 is 941023252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216619524 + 35700625 = 14718^2 + 5975^2 .

It is a cyclic number.

It is not a de Polignac number, because 252320149 - 2¹ = 252320147 is a prime.

Together with 252320147, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252320141) 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, 126160074 + 126160075.

It is an arithmetic number, because the mean of its divisors is an integer number (126160075).

Almost surely, 2^252320149 is an apocalyptic number.

It is an amenable number.

252320149 is a deficient number, since it is larger than the sum of its proper divisors (1).

252320149 is an equidigital number, since it uses as much as digits as its factorization.

252320149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 252320149 is about 15884.5884114131. The cubic root of 252320149 is about 631.9033301977.

The spelling of 252320149 in words is "two hundred fifty-two million, three hundred twenty thousand, one hundred forty-nine".