196506129 has 4 divisors (see below), whose sum is σ = 262008176. Its totient is φ = 131004084.

The previous prime is 196506127. The next prime is 196506131. The reversal of 196506129 is 921605691.

196506129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (196506127) and next prime (196506131).

It is not a de Polignac number, because 196506129 - 2¹ = 196506127 is a prime.

It is a super-2 number, since 2×196506129² = 77229317469129282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196506127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32751019 + ... + 32751024.

It is an arithmetic number, because the mean of its divisors is an integer number (65502044).

Almost surely, 2^196506129 is an apocalyptic number.

It is an amenable number.

196506129 is a deficient number, since it is larger than the sum of its proper divisors (65502047).

196506129 is an equidigital number, since it uses as much as digits as its factorization.

196506129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65502046.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 196506129 is about 14018.0643813616. The cubic root of 196506129 is about 581.3781427268.

The spelling of 196506129 in words is "one hundred ninety-six million, five hundred six thousand, one hundred twenty-nine".