1252690015 has 8 divisors (see below), whose sum is σ = 1539892368. Its totient is φ = 977709120.

The previous prime is 1252689983. The next prime is 1252690031. The reversal of 1252690015 is 5100962521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1252690015 - 2⁵ = 1252689983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3055137 + ... + 3055546.

It is an arithmetic number, because the mean of its divisors is an integer number (192486546).

Almost surely, 2^1252690015 is an apocalyptic number.

1252690015 is a deficient number, since it is larger than the sum of its proper divisors (287202353).

1252690015 is an equidigital number, since it uses as much as digits as its factorization.

1252690015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6110729.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1252690015 is about 35393.3611712705. The cubic root of 1252690015 is about 1077.9895195886.

The spelling of 1252690015 in words is "one billion, two hundred fifty-two million, six hundred ninety thousand, fifteen".