1249252528 has 10 divisors (see below), whose sum is σ = 2420426804. Its totient is φ = 624626256.

The previous prime is 1249252513. The next prime is 1249252541. The reversal of 1249252528 is 8252529421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39039126 + ... + 39039157.

Almost surely, 2^1249252528 is an apocalyptic number.

It is an amenable number.

1249252528 is a deficient number, since it is larger than the sum of its proper divisors (1171174276).

1249252528 is an equidigital number, since it uses as much as digits as its factorization.

1249252528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78078291 (or 78078285 counting only the distinct ones).

The product of its digits is 115200, while the sum is 40.

The square root of 1249252528 is about 35344.7666281728. The cubic root of 1249252528 is about 1077.0025849221.

The spelling of 1249252528 in words is "one billion, two hundred forty-nine million, two hundred fifty-two thousand, five hundred twenty-eight".