1251434252 has 12 divisors (see below), whose sum is σ = 2202670176. Its totient is φ = 622099920.

The previous prime is 1251434237. The next prime is 1251434269. The reversal of 1251434252 is 2524341521.

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, 903524 + ... + 904907.

It is an arithmetic number, because the mean of its divisors is an integer number (183555848).

Almost surely, 2^1251434252 is an apocalyptic number.

It is an amenable number.

1251434252 is a deficient number, since it is larger than the sum of its proper divisors (951235924).

1251434252 is a wasteful number, since it uses less digits than its factorization.

1251434252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808608 (or 1808606 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 1251434252 is about 35375.6166306681. The cubic root of 1251434252 is about 1077.6291878414.

Adding to 1251434252 its reverse (2524341521), we get a palindrome (3775775773).

The spelling of 1251434252 in words is "one billion, two hundred fifty-one million, four hundred thirty-four thousand, two hundred fifty-two".