1252903140 has 84 divisors (see below), whose sum is σ = 3944886204. Its totient is φ = 334103616.

The previous prime is 1252903123. The next prime is 1252903151. The reversal of 1252903140 is 413092521.

It can be written as a sum of positive squares in 2 ways, for example, as 625100004 + 627803136 = 25002^2 + 25056^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 28387 + ... + 57546.

It is an arithmetic number, because the mean of its divisors is an integer number (46962931).

Almost surely, 2^1252903140 is an apocalyptic number.

1252903140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252903140 is an abundant number, since it is smaller than the sum of its proper divisors (2691983064).

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

1252903140 is an equidigital number, since it uses as much as digits as its factorization.

1252903140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85960 (or 85943 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1252903140 is about 35396.3718479733. The cubic root of 1252903140 is about 1078.0506502981.

Adding to 1252903140 its reverse (413092521), we get a palindrome (1665995661).

The spelling of 1252903140 in words is "one billion, two hundred fifty-two million, nine hundred three thousand, one hundred forty".