1251012452 has 12 divisors (see below), whose sum is σ = 2189533500. Its totient is φ = 625431456.

The previous prime is 1251012407. The next prime is 1251012457. The reversal of 1251012452 is 2542101521.

It can be written as a sum of positive squares in 2 ways, for example, as 742780516 + 508231936 = 27254^2 + 22544^2 .

It is not an unprimeable number, because it can be changed into a prime (1251012457) 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, 38174 + ... + 62922.

It is an arithmetic number, because the mean of its divisors is an integer number (182461125).

Almost surely, 2^1251012452 is an apocalyptic number.

It is an amenable number.

1251012452 is a deficient number, since it is larger than the sum of its proper divisors (938521048).

1251012452 is a wasteful number, since it uses less digits than its factorization.

1251012452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37390 (or 37388 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1251012452 is about 35369.6543946926. The cubic root of 1251012452 is about 1077.5081014243.

Adding to 1251012452 its reverse (2542101521), we get a palindrome (3793113973).

The spelling of 1251012452 in words is "one billion, two hundred fifty-one million, twelve thousand, four hundred fifty-two".