2136169197 has 12 divisors (see below), whose sum is σ = 3094738140. Its totient is φ = 1419884928.

The previous prime is 2136169193. The next prime is 2136169207. The reversal of 2136169197 is 7919616312.

2136169197 is a `hidden beast` number, since 2 + 13 + 616 + 9 + 19 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 812592036 + 1323577161 = 28506^2 + 36381^2 .

It is not a de Polignac number, because 2136169197 - 2² = 2136169193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136169193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 349122 + ... + 355187.

It is an arithmetic number, because the mean of its divisors is an integer number (257894845).

Almost surely, 2^2136169197 is an apocalyptic number.

It is an amenable number.

2136169197 is a deficient number, since it is larger than the sum of its proper divisors (958568943).

2136169197 is a wasteful number, since it uses less digits than its factorization.

2136169197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704652 (or 704649 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 2136169197 is about 46218.7104644861. The cubic root of 2136169197 is about 1287.8893427961.

The spelling of 2136169197 in words is "two billion, one hundred thirty-six million, one hundred sixty-nine thousand, one hundred ninety-seven".