196513765 has 24 divisors (see below), whose sum is σ = 275472792. Its totient is φ = 134184960.

The previous prime is 196513763. The next prime is 196513769. The reversal of 196513765 is 567315691.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14182756 + 182331009 = 3766^2 + 13503^2 .

It is not a de Polignac number, because 196513765 - 2¹ = 196513763 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196513763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61405 + ... + 64525.

It is an arithmetic number, because the mean of its divisors is an integer number (11478033).

Almost surely, 2^196513765 is an apocalyptic number.

It is an amenable number.

196513765 is a deficient number, since it is larger than the sum of its proper divisors (78959027).

196513765 is a wasteful number, since it uses less digits than its factorization.

196513765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397 (or 3390 counting only the distinct ones).

The product of its digits is 170100, while the sum is 43.

The square root of 196513765 is about 14018.3367415682. The cubic root of 196513765 is about 581.3856731891.

The spelling of 196513765 in words is "one hundred ninety-six million, five hundred thirteen thousand, seven hundred sixty-five".