1252135364 has 48 divisors (see below), whose sum is σ = 2325243648. Its totient is φ = 588791808.

The previous prime is 1252135363. The next prime is 1252135369. The reversal of 1252135364 is 4635312521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1252135364.

It is not an unprimeable number, because it can be changed into a prime (1252135363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1721969 + ... + 1722695.

It is an arithmetic number, because the mean of its divisors is an integer number (48442576).

Almost surely, 2^1252135364 is an apocalyptic number.

It is an amenable number.

1252135364 is a deficient number, since it is larger than the sum of its proper divisors (1073108284).

1252135364 is a wasteful number, since it uses less digits than its factorization.

1252135364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044 (or 1042 counting only the distinct ones).

The product of its digits is 21600, while the sum is 32.

The square root of 1252135364 is about 35385.5247806218. The cubic root of 1252135364 is about 1077.8303963619.

Adding to 1252135364 its reverse (4635312521), we get a palindrome (5887447885).

The spelling of 1252135364 in words is "one billion, two hundred fifty-two million, one hundred thirty-five thousand, three hundred sixty-four".