1313253441 has 12 divisors (see below), whose sum is σ = 1899437332. Its totient is φ = 874341216.

The previous prime is 1313253433. The next prime is 1313253443. The reversal of 1313253441 is 1443523131.

It is a happy number.

1313253441 is a `hidden beast` number, since 1 + 313 + 2 + 5 + 344 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1161446400 + 151807041 = 34080^2 + 12321^2 .

It is not a de Polignac number, because 1313253441 - 2³ = 1313253433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313253443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89566 + ... + 103191.

Almost surely, 2^1313253441 is an apocalyptic number.

It is an amenable number.

1313253441 is a deficient number, since it is larger than the sum of its proper divisors (586183891).

1313253441 is a wasteful number, since it uses less digits than its factorization.

1313253441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193520 (or 193517 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 1313253441 is about 36238.8388472920. The cubic root of 1313253441 is about 1095.0892502470.

Adding to 1313253441 its reverse (1443523131), we get a palindrome (2756776572).

The spelling of 1313253441 in words is "one billion, three hundred thirteen million, two hundred fifty-three thousand, four hundred forty-one".