196811613 has 10 divisors (see below), whose sum is σ = 294002654. Its totient is φ = 131207688.

The previous prime is 196811543. The next prime is 196811623. The reversal of 196811613 is 316118691.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 152695449 + 44116164 = 12357^2 + 6642^2 .

It is not a de Polignac number, because 196811613 - 2¹³ = 196803421 is a prime.

It is a super-2 number, since 2×196811613² = 77469622023323538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196811623) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1214806 + ... + 1214967.

Almost surely, 2^196811613 is an apocalyptic number.

It is an amenable number.

196811613 is a deficient number, since it is larger than the sum of its proper divisors (97191041).

196811613 is an equidigital number, since it uses as much as digits as its factorization.

196811613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429785 (or 2429776 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 196811613 is about 14028.9562334480. The cubic root of 196811613 is about 581.6792525344.

The spelling of 196811613 in words is "one hundred ninety-six million, eight hundred eleven thousand, six hundred thirteen".