196164381 has 16 divisors (see below), whose sum is σ = 309225600. Its totient is φ = 108228288.

The previous prime is 196164337. The next prime is 196164431. The reversal of 196164381 is 183461691.

It is not a de Polignac number, because 196164381 - 2⁶ = 196164317 is a prime.

It is a super-2 number, since 2×196164381² = 76960928746226322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196169381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160446 + ... + 161663.

It is an arithmetic number, because the mean of its divisors is an integer number (19326600).

Almost surely, 2^196164381 is an apocalyptic number.

It is an amenable number.

196164381 is a deficient number, since it is larger than the sum of its proper divisors (113061219).

196164381 is a wasteful number, since it uses less digits than its factorization.

196164381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322148.

The product of its digits is 31104, while the sum is 39.

The square root of 196164381 is about 14005.8695195978. The cubic root of 196164381 is about 581.0409181172.

The spelling of 196164381 in words is "one hundred ninety-six million, one hundred sixty-four thousand, three hundred eighty-one".