1252285669 has 4 divisors (see below), whose sum is σ = 1306732896. Its totient is φ = 1197838444.

The previous prime is 1252285667. The next prime is 1252285709. The reversal of 1252285669 is 9665822521.

It is a happy number.

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 1252285669 - 2¹ = 1252285667 is a prime.

It is a super-2 number, since 2×1252285669² = 3136438793565555122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252285667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27223579 + ... + 27223624.

It is an arithmetic number, because the mean of its divisors is an integer number (326683224).

Almost surely, 2^1252285669 is an apocalyptic number.

It is an amenable number.

1252285669 is a deficient number, since it is larger than the sum of its proper divisors (54447227).

1252285669 is an equidigital number, since it uses as much as digits as its factorization.

1252285669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54447226.

The product of its digits is 518400, while the sum is 46.

The square root of 1252285669 is about 35387.6485373075. The cubic root of 1252285669 is about 1077.8735218420.

The spelling of 1252285669 in words is "one billion, two hundred fifty-two million, two hundred eighty-five thousand, six hundred sixty-nine".