135938395197 has 24 divisors (see below), whose sum is σ = 219995312160. Its totient is φ = 80160230880.

The previous prime is 135938395169. The next prime is 135938395231. The reversal of 135938395197 is 791593839531.

135938395197 is a `hidden beast` number, since 1 + 3 + 59 + 3 + 8 + 395 + 197 = 666.

It is not a de Polignac number, because 135938395197 - 2¹² = 135938391101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135938395127) 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, 18551947 + ... + 18559272.

It is an arithmetic number, because the mean of its divisors is an integer number (9166471340).

Almost surely, 2^135938395197 is an apocalyptic number.

It is an amenable number.

135938395197 is a deficient number, since it is larger than the sum of its proper divisors (84056916963).

135938395197 is a wasteful number, since it uses less digits than its factorization.

135938395197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37111273 (or 37111270 counting only the distinct ones).

The product of its digits is 27556200, while the sum is 63.

It can be divided in two parts, 135938 and 395197, that added together give a palindrome (531135).

The spelling of 135938395197 in words is "one hundred thirty-five billion, nine hundred thirty-eight million, three hundred ninety-five thousand, one hundred ninety-seven".