196387137 has 6 divisors (see below), whose sum is σ = 283670322. Its totient is φ = 130924752.

The previous prime is 196387109. The next prime is 196387141. The reversal of 196387137 is 731783691.

196387137 is a `hidden beast` number, since 1 + 9 + 638 + 7 + 1 + 3 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 179667216 + 16719921 = 13404^2 + 4089^2 .

It is not a de Polignac number, because 196387137 - 2¹⁴ = 196370753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196387092 and 196387101.

It is not an unprimeable number, because it can be changed into a prime (196387187) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10910388 + ... + 10910405.

It is an arithmetic number, because the mean of its divisors is an integer number (47278387).

Almost surely, 2^196387137 is an apocalyptic number.

It is an amenable number.

196387137 is a deficient number, since it is larger than the sum of its proper divisors (87283185).

196387137 is a wasteful number, since it uses less digits than its factorization.

196387137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21820799 (or 21820796 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 196387137 is about 14013.8195007642. The cubic root of 196387137 is about 581.2607701091.

The spelling of 196387137 in words is "one hundred ninety-six million, three hundred eighty-seven thousand, one hundred thirty-seven".