197129346 has 16 divisors (see below), whose sum is σ = 399660384. Its totient is φ = 64809504.

The previous prime is 197129323. The next prime is 197129347. The reversal of 197129346 is 643921791.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 197129298 and 197129307.

It is not an unprimeable number, because it can be changed into a prime (197129347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224596 + ... + 225471.

It is an arithmetic number, because the mean of its divisors is an integer number (24978774).

Almost surely, 2^197129346 is an apocalyptic number.

197129346 is an abundant number, since it is smaller than the sum of its proper divisors (202531038).

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

197129346 is a wasteful number, since it uses less digits than its factorization.

197129346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450145.

The product of its digits is 81648, while the sum is 42.

The square root of 197129346 is about 14040.2758519909. The cubic root of 197129346 is about 581.9921055601.

The spelling of 197129346 in words is "one hundred ninety-seven million, one hundred twenty-nine thousand, three hundred forty-six".