196017138 has 16 divisors (see below), whose sum is σ = 435593760. Its totient is φ = 65339028.

The previous prime is 196017127. The next prime is 196017139. The reversal of 196017138 is 831710691.

196017138 is a `hidden beast` number, since 19 + 601 + 7 + 1 + 38 = 666.

It is a super-2 number, since 2×196017138² = 76845436779422088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (196017139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1814920 + ... + 1815027.

It is an arithmetic number, because the mean of its divisors is an integer number (27224610).

Almost surely, 2^196017138 is an apocalyptic number.

196017138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

196017138 is an abundant number, since it is smaller than the sum of its proper divisors (239576622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196017138 is a wasteful number, since it uses less digits than its factorization.

196017138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3629958 (or 3629952 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 196017138 is about 14000.6120580495. The cubic root of 196017138 is about 580.8955033000.

The spelling of 196017138 in words is "one hundred ninety-six million, seventeen thousand, one hundred thirty-eight".