197297136 has 60 divisors (see below), whose sum is σ = 553593040. Its totient is φ = 65594880.

The previous prime is 197297131. The next prime is 197297153. The reversal of 197297136 is 631792791.

It is a junction number, because it is equal to n+sod(n) for n = 197297091 and 197297100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197297131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61656 + ... + 64776.

Almost surely, 2^197297136 is an apocalyptic number.

197297136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

197297136 is an abundant number, since it is smaller than the sum of its proper divisors (356295904).

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

197297136 is a wasteful number, since it uses less digits than its factorization.

197297136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3574 (or 3565 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 197297136 is about 14046.2498909851. The cubic root of 197297136 is about 582.1571828968.

The spelling of 197297136 in words is "one hundred ninety-seven million, two hundred ninety-seven thousand, one hundred thirty-six".