1252525149 has 12 divisors (see below), whose sum is σ = 1816776000. Its totient is φ = 831521544.

The previous prime is 1252525117. The next prime is 1252525189. The reversal of 1252525149 is 9415252521.

1252525149 is a `hidden beast` number, since 125 + 2 + 525 + 1 + 4 + 9 = 666.

It is not a de Polignac number, because 1252525149 - 2⁵ = 1252525117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252525189) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288999 + ... + 293300.

It is an arithmetic number, because the mean of its divisors is an integer number (151398000).

Almost surely, 2^1252525149 is an apocalyptic number.

It is an amenable number.

1252525149 is a deficient number, since it is larger than the sum of its proper divisors (564250851).

1252525149 is a wasteful number, since it uses less digits than its factorization.

1252525149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582544 (or 582541 counting only the distinct ones).

The product of its digits is 36000, while the sum is 36.

The square root of 1252525149 is about 35391.0320420301. The cubic root of 1252525149 is about 1077.9422262664.

The spelling of 1252525149 in words is "one billion, two hundred fifty-two million, five hundred twenty-five thousand, one hundred forty-nine".