1251344252 has 12 divisors (see below), whose sum is σ = 2191631400. Its totient is φ = 625163856.

The previous prime is 1251344251. The next prime is 1251344261. The reversal of 1251344252 is 2524431521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251344251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121502 + ... + 131397.

It is an arithmetic number, because the mean of its divisors is an integer number (182635950).

Almost surely, 2^1251344252 is an apocalyptic number.

It is an amenable number.

1251344252 is a deficient number, since it is larger than the sum of its proper divisors (940287148).

1251344252 is a wasteful number, since it uses less digits than its factorization.

1251344252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254140 (or 254138 counting only the distinct ones).

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

The square root of 1251344252 is about 35374.3445451644. The cubic root of 1251344252 is about 1077.6033537630.

Adding to 1251344252 its reverse (2524431521), we get a palindrome (3775775773).

It can be divided in two parts, 12513 and 44252, that added together give a palindrome (56765).

The spelling of 1251344252 in words is "one billion, two hundred fifty-one million, three hundred forty-four thousand, two hundred fifty-two".