1251420076 has 12 divisors (see below), whose sum is σ = 2190353872. Its totient is φ = 625604688.

The previous prime is 1251420067. The next prime is 1251420077. The reversal of 1251420076 is 6700241521.

It is not an unprimeable number, because it can be changed into a prime (1251420077) 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, 4366 + ... + 50218.

Almost surely, 2^1251420076 is an apocalyptic number.

It is an amenable number.

1251420076 is a deficient number, since it is larger than the sum of its proper divisors (938933796).

1251420076 is a wasteful number, since it uses less digits than its factorization.

1251420076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52680 (or 52678 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1251420076 is about 35375.4162661021. The cubic root of 1251420076 is about 1077.6251187692.

Adding to 1251420076 its reverse (6700241521), we get a palindrome (7951661597).

The spelling of 1251420076 in words is "one billion, two hundred fifty-one million, four hundred twenty thousand, seventy-six".