1252035140 has 12 divisors (see below), whose sum is σ = 2629273836. Its totient is φ = 500814048.

The previous prime is 1252035137. The next prime is 1252035151. The reversal of 1252035140 is 415302521.

It can be written as a sum of positive squares in 2 ways, for example, as 646481476 + 605553664 = 25426^2 + 24608^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31300859 + ... + 31300898.

It is an arithmetic number, because the mean of its divisors is an integer number (219106153).

Almost surely, 2^1252035140 is an apocalyptic number.

1252035140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252035140 is an abundant number, since it is smaller than the sum of its proper divisors (1377238696).

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

1252035140 is a wasteful number, since it uses less digits than its factorization.

1252035140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62601766 (or 62601764 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1252035140 is about 35384.1085799826. The cubic root of 1252035140 is about 1077.8016381943.

Adding to 1252035140 its reverse (415302521), we get a palindrome (1667337661).

The spelling of 1252035140 in words is "one billion, two hundred fifty-two million, thirty-five thousand, one hundred forty".