1252615397 has 24 divisors (see below), whose sum is σ = 1438153920. Its totient is φ = 1081868480.

The previous prime is 1252615373. The next prime is 1252615423. The reversal of 1252615397 is 7935162521.

It is not a de Polignac number, because 1252615397 - 2¹⁴ = 1252599013 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252615697) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 971129 + ... + 972417.

It is an arithmetic number, because the mean of its divisors is an integer number (59923080).

Almost surely, 2^1252615397 is an apocalyptic number.

It is an amenable number.

1252615397 is a deficient number, since it is larger than the sum of its proper divisors (185538523).

1252615397 is a wasteful number, since it uses less digits than its factorization.

1252615397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513 (or 1490 counting only the distinct ones).

The product of its digits is 113400, while the sum is 41.

The square root of 1252615397 is about 35392.3070313310. The cubic root of 1252615397 is about 1077.9681152459.

The spelling of 1252615397 in words is "one billion, two hundred fifty-two million, six hundred fifteen thousand, three hundred ninety-seven".