1613570231513 has 12 divisors (see below), whose sum is σ = 1703664428580. Its totient is φ = 1528017384096.

The previous prime is 1613570231503. The next prime is 1613570231543. The reversal of 1613570231513 is 3151320753161.

It can be written as a sum of positive squares in 2 ways, for example, as 688987982809 + 924582248704 = 830053^2 + 961552^2 .

It is not a de Polignac number, because 1613570231513 - 2³⁰ = 1612496489689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1613570231503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37298 + ... + 1796811.

It is an arithmetic number, because the mean of its divisors is an integer number (141972035715).

Almost surely, 2^{1613570231513} is an apocalyptic number.

It is an amenable number.

1613570231513 is a deficient number, since it is larger than the sum of its proper divisors (90094197067).

1613570231513 is a wasteful number, since it uses less digits than its factorization.

1613570231513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836584 (or 1836565 counting only the distinct ones).

The product of its (nonzero) digits is 56700, while the sum is 38.

Adding to 1613570231513 its reverse (3151320753161), we get a palindrome (4764890984674).

The spelling of 1613570231513 in words is "one trillion, six hundred thirteen billion, five hundred seventy million, two hundred thirty-one thousand, five hundred thirteen".