1313025242 has 16 divisors (see below), whose sum is σ = 2059152192. Its totient is φ = 626751840.

The previous prime is 1313025221. The next prime is 1313025247. The reversal of 1313025242 is 2425203131.

It is a super-2 number, since 2×1313025242² = 3448070572258317128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (1313025247) 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, 3428 + ... + 51359.

It is an arithmetic number, because the mean of its divisors is an integer number (128697012).

Almost surely, 2^1313025242 is an apocalyptic number.

1313025242 is a deficient number, since it is larger than the sum of its proper divisors (746126950).

1313025242 is a wasteful number, since it uses less digits than its factorization.

1313025242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55333.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1313025242 is about 36235.6901686721. The cubic root of 1313025242 is about 1095.0258167568.

Adding to 1313025242 its reverse (2425203131), we get a palindrome (3738228373).

The spelling of 1313025242 in words is "one billion, three hundred thirteen million, twenty-five thousand, two hundred forty-two".