252149671 has 2 divisors, whose sum is σ = 252149672. Its totient is φ = 252149670.

The previous prime is 252149663. The next prime is 252149683. The reversal of 252149671 is 176941252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252149671 - 2³ = 252149663 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252149671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252149771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126074835 + 126074836.

It is an arithmetic number, because the mean of its divisors is an integer number (126074836).

Almost surely, 2^252149671 is an apocalyptic number.

252149671 is a deficient number, since it is larger than the sum of its proper divisors (1).

252149671 is an equidigital number, since it uses as much as digits as its factorization.

252149671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 37.

The square root of 252149671 is about 15879.2213600038. The cubic root of 252149671 is about 631.7609847334.

The spelling of 252149671 in words is "two hundred fifty-two million, one hundred forty-nine thousand, six hundred seventy-one".