1313025233 has 8 divisors (see below), whose sum is σ = 1440707688. Its totient is φ = 1189154304.

The previous prime is 1313025221. The next prime is 1313025247. The reversal of 1313025233 is 3325203131.

It can be written as a sum of positive squares in 4 ways, for example, as 448253584 + 864771649 = 21172^2 + 29407^2 .

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

It is not a de Polignac number, because 1313025233 - 2¹² = 1313021137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313025199 and 1313025208.

It is not an unprimeable number, because it can be changed into a prime (1313025433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 952160 + ... + 953537.

It is an arithmetic number, because the mean of its divisors is an integer number (180088461).

Almost surely, 2^1313025233 is an apocalyptic number.

1313025233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1313025233 is a deficient number, since it is larger than the sum of its proper divisors (127682455).

1313025233 is a wasteful number, since it uses less digits than its factorization.

1313025233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905763.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 1313025233 is about 36235.6900444851. The cubic root of 1313025233 is about 1095.0258142549.

Adding to 1313025233 its reverse (3325203131), we get a palindrome (4638228364).

The spelling of 1313025233 in words is "one billion, three hundred thirteen million, twenty-five thousand, two hundred thirty-three".