1253651315 has 32 divisors (see below), whose sum is σ = 1879179264. Its totient is φ = 782968320.

The previous prime is 1253651299. The next prime is 1253651341. The reversal of 1253651315 is 5131563521.

It is not a de Polignac number, because 1253651315 - 2⁴ = 1253651299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15539 + ... + 52428.

It is an arithmetic number, because the mean of its divisors is an integer number (58724352).

Almost surely, 2^1253651315 is an apocalyptic number.

1253651315 is a deficient number, since it is larger than the sum of its proper divisors (625527949).

1253651315 is a wasteful number, since it uses less digits than its factorization.

1253651315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68027.

The product of its digits is 13500, while the sum is 32.

The square root of 1253651315 is about 35406.9387973600. The cubic root of 1253651315 is about 1078.2651946962.

The spelling of 1253651315 in words is "one billion, two hundred fifty-three million, six hundred fifty-one thousand, three hundred fifteen".