1252902144 has 144 divisors (see below), whose sum is σ = 3646594112. Its totient is φ = 379551744.

The previous prime is 1252902097. The next prime is 1252902163. The reversal of 1252902144 is 4412092521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 667992 + ... + 669864.

Almost surely, 2^1252902144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1252902144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1823297056).

1252902144 is an abundant number, since it is smaller than the sum of its proper divisors (2393691968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1252902144 is a wasteful number, since it uses less digits than its factorization.

1252902144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972 (or 1958 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1252902144 is about 35396.3577787320. The cubic root of 1252902144 is about 1078.0503646313.

Adding to 1252902144 its reverse (4412092521), we get a palindrome (5664994665).

The spelling of 1252902144 in words is "one billion, two hundred fifty-two million, nine hundred two thousand, one hundred forty-four".