1301253028 has 12 divisors (see below), whose sum is σ = 2279078620. Its totient is φ = 650087712.

The previous prime is 1301253017. The next prime is 1301253043. The reversal of 1301253028 is 8203521031.

It can be written as a sum of positive squares in 2 ways, for example, as 707453604 + 593799424 = 26598^2 + 24368^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1301252993 and 1301253011.

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, 129243 + ... + 138946.

Almost surely, 2^1301253028 is an apocalyptic number.

It is an amenable number.

1301253028 is a deficient number, since it is larger than the sum of its proper divisors (977825592).

1301253028 is a wasteful number, since it uses less digits than its factorization.

1301253028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269406 (or 269404 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1301253028 is about 36072.8849414626. The cubic root of 1301253028 is about 1091.7434232403.

Adding to 1301253028 its reverse (8203521031), we get a palindrome (9504774059).

The spelling of 1301253028 in words is "one billion, three hundred one million, two hundred fifty-three thousand, twenty-eight".