1313898634 has 8 divisors (see below), whose sum is σ = 1992992580. Its totient is φ = 649567776.

The previous prime is 1313898631. The next prime is 1313898643. The reversal of 1313898634 is 4368983131.

It can be written as a sum of positive squares in 2 ways, for example, as 1173405025 + 140493609 = 34255^2 + 11853^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1313898631) 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, 3690549 + ... + 3690904.

Almost surely, 2^1313898634 is an apocalyptic number.

1313898634 is a deficient number, since it is larger than the sum of its proper divisors (679093946).

1313898634 is an equidigital number, since it uses as much as digits as its factorization.

1313898634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7381544.

The product of its digits is 373248, while the sum is 46.

The square root of 1313898634 is about 36247.7397088425. The cubic root of 1313898634 is about 1095.2685576631.

The spelling of 1313898634 in words is "one billion, three hundred thirteen million, eight hundred ninety-eight thousand, six hundred thirty-four".