252101869 has 2 divisors, whose sum is σ = 252101870. Its totient is φ = 252101868.

The previous prime is 252101833. The next prime is 252101909. The reversal of 252101869 is 968101252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236021769 + 16080100 = 15363^2 + 4010^2 .

It is a cyclic number.

It is not a de Polignac number, because 252101869 - 2⁹ = 252101357 is a prime.

It is a super-2 number, since 2×252101869² = 127110704706586322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252101809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126050934 + 126050935.

It is an arithmetic number, because the mean of its divisors is an integer number (126050935).

Almost surely, 2^252101869 is an apocalyptic number.

It is an amenable number.

252101869 is a deficient number, since it is larger than the sum of its proper divisors (1).

252101869 is an equidigital number, since it uses as much as digits as its factorization.

252101869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 252101869 is about 15877.7161141015. The cubic root of 252101869 is about 631.7210595743.

The spelling of 252101869 in words is "two hundred fifty-two million, one hundred one thousand, eight hundred sixty-nine".