1248252975 has 72 divisors (see below), whose sum is σ = 2429606400. Its totient is φ = 610286400.

The previous prime is 1248252953. The next prime is 1248253021. The reversal of 1248252975 is 5792528421.

1248252975 is a `hidden beast` number, since 12 + 48 + 2 + 529 + 75 = 666.

It is not a de Polignac number, because 1248252975 - 2¹⁰ = 1248251951 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1248252975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 127816 + ... + 137234.

Almost surely, 2^1248252975 is an apocalyptic number.

1248252975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1248252975 is a deficient number, since it is larger than the sum of its proper divisors (1181353425).

1248252975 is a wasteful number, since it uses less digits than its factorization.

1248252975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9485 (or 9477 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 1248252975 is about 35330.6237561694. The cubic root of 1248252975 is about 1076.7152642019.

The spelling of 1248252975 in words is "one billion, two hundred forty-eight million, two hundred fifty-two thousand, nine hundred seventy-five".