1313005402 has 16 divisors (see below), whose sum is σ = 2032962624. Its totient is φ = 635596000.

The previous prime is 1313005391. The next prime is 1313005417. The reversal of 1313005402 is 2045003131.

It is a self number, because there is not a number n which added to its sum of digits gives 1313005402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50374 + ... + 71857.

It is an arithmetic number, because the mean of its divisors is an integer number (127060164).

Almost surely, 2^1313005402 is an apocalyptic number.

1313005402 is a deficient number, since it is larger than the sum of its proper divisors (719957222).

1313005402 is a wasteful number, since it uses less digits than its factorization.

1313005402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122405.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1313005402 is about 36235.4164043964. The cubic root of 1313005402 is about 1095.0203013966.

Adding to 1313005402 its reverse (2045003131), we get a palindrome (3358008533).

The spelling of 1313005402 in words is "one billion, three hundred thirteen million, five thousand, four hundred two".