197855152 has 40 divisors (see below), whose sum is σ = 419348160. Its totient is φ = 89686080.

The previous prime is 197855137. The next prime is 197855159. The reversal of 197855152 is 251558791.

197855152 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×197855152² = 78293322345886208, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 197855099 and 197855108.

It is not an unprimeable number, because it can be changed into a prime (197855159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72403 + ... + 75085.

It is an arithmetic number, because the mean of its divisors is an integer number (10483704).

Almost surely, 2^197855152 is an apocalyptic number.

It is an amenable number.

197855152 is an abundant number, since it is smaller than the sum of its proper divisors (221493008).

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

197855152 is a wasteful number, since it uses less digits than its factorization.

197855152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121 (or 3115 counting only the distinct ones).

The product of its digits is 126000, while the sum is 43.

The square root of 197855152 is about 14066.0993882455. The cubic root of 197855152 is about 582.7055051695.

The spelling of 197855152 in words is "one hundred ninety-seven million, eight hundred fifty-five thousand, one hundred fifty-two".