197457912 has 48 divisors (see below), whose sum is σ = 554594040. Its totient is φ = 65818656.

The previous prime is 197457881. The next prime is 197457971. The reversal of 197457912 is 219754791.

197457912 is a `hidden beast` number, since 1 + 9 + 74 + 579 + 1 + 2 = 666.

It is a super-2 number, since 2×197457912² = 77979254022799488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48843 + ... + 52730.

Almost surely, 2^197457912 is an apocalyptic number.

197457912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

197457912 is an abundant number, since it is smaller than the sum of its proper divisors (357136128).

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

197457912 is a wasteful number, since it uses less digits than its factorization.

197457912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101594 (or 101578 counting only the distinct ones).

The product of its digits is 158760, while the sum is 45.

The square root of 197457912 is about 14051.9718189299. The cubic root of 197457912 is about 582.3152718464.

The spelling of 197457912 in words is "one hundred ninety-seven million, four hundred fifty-seven thousand, nine hundred twelve".