1252860087 has 4 divisors (see below), whose sum is σ = 1670480120. Its totient is φ = 835240056.

The previous prime is 1252860073. The next prime is 1252860097. The reversal of 1252860087 is 7800682521.

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

It is not a de Polignac number, because 1252860087 - 2⁸ = 1252859831 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 (1252860097) 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, 208810012 + ... + 208810017.

It is an arithmetic number, because the mean of its divisors is an integer number (417620030).

Almost surely, 2^1252860087 is an apocalyptic number.

1252860087 is a deficient number, since it is larger than the sum of its proper divisors (417620033).

1252860087 is an equidigital number, since it uses as much as digits as its factorization.

1252860087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417620032.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 1252860087 is about 35395.7636871985. The cubic root of 1252860087 is about 1078.0383019516.

The spelling of 1252860087 in words is "one billion, two hundred fifty-two million, eight hundred sixty thousand, eighty-seven".