1313621035 has 16 divisors (see below), whose sum is σ = 1588667040. Its totient is φ = 1042709760.

The previous prime is 1313621009. The next prime is 1313621039. The reversal of 1313621035 is 5301263131.

It is not a de Polignac number, because 1313621035 - 2⁵ = 1313621003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313621039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 482839 + ... + 485551.

It is an arithmetic number, because the mean of its divisors is an integer number (99291690).

Almost surely, 2^1313621035 is an apocalyptic number.

1313621035 is a deficient number, since it is larger than the sum of its proper divisors (275046005).

1313621035 is a wasteful number, since it uses less digits than its factorization.

1313621035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3438.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1313621035 is about 36243.9103160793. The cubic root of 1313621035 is about 1095.1914165342.

Adding to 1313621035 its reverse (5301263131), we get a palindrome (6614884166).

The spelling of 1313621035 in words is "one billion, three hundred thirteen million, six hundred twenty-one thousand, thirty-five".