1252861327 has 4 divisors (see below), whose sum is σ = 1254281080. Its totient is φ = 1251441576.

The previous prime is 1252861321. The next prime is 1252861331. The reversal of 1252861327 is 7231682521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1252861327 - 2⁷ = 1252861199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252861321) 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, 708552 + ... + 710317.

It is an arithmetic number, because the mean of its divisors is an integer number (313570270).

Almost surely, 2^1252861327 is an apocalyptic number.

1252861327 is a deficient number, since it is larger than the sum of its proper divisors (1419753).

1252861327 is an equidigital number, since it uses as much as digits as its factorization.

1252861327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419752.

The product of its digits is 40320, while the sum is 37.

The square root of 1252861327 is about 35395.7812034146. The cubic root of 1252861327 is about 1078.0386576091.

The spelling of 1252861327 in words is "one billion, two hundred fifty-two million, eight hundred sixty-one thousand, three hundred twenty-seven".