252912769 has 4 divisors (see below), whose sum is σ = 254587840. Its totient is φ = 251237700.

The previous prime is 252912697. The next prime is 252912773. The reversal of 252912769 is 967219252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252912769 - 2¹³ = 252904577 is a prime.

It is a super-2 number, since 2×252912769² = 127929737446494722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252915769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837309 + ... + 837610.

It is an arithmetic number, because the mean of its divisors is an integer number (63646960).

Almost surely, 2^252912769 is an apocalyptic number.

It is an amenable number.

252912769 is a deficient number, since it is larger than the sum of its proper divisors (1675071).

252912769 is a wasteful number, since it uses less digits than its factorization.

252912769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675070.

The product of its digits is 136080, while the sum is 43.

The square root of 252912769 is about 15903.2314011964. The cubic root of 252912769 is about 632.3976568932.

The spelling of 252912769 in words is "two hundred fifty-two million, nine hundred twelve thousand, seven hundred sixty-nine".