197831952 has 60 divisors (see below), whose sum is σ = 582802480. Its totient is φ = 62472384.

The previous prime is 197831903. The next prime is 197831981. The reversal of 197831952 is 259138791.

It is a junction number, because it is equal to n+sod(n) for n = 197831898 and 197831907.

It is an unprimeable number.

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, 33418 + ... + 38889.

Almost surely, 2^197831952 is an apocalyptic number.

197831952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

197831952 is an abundant number, since it is smaller than the sum of its proper divisors (384970528).

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

197831952 is a wasteful number, since it uses less digits than its factorization.

197831952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72340 (or 72331 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 197831952 is about 14065.2746862619. The cubic root of 197831952 is about 582.6827287495.

It can be divided in two parts, 1978 and 31952, that added together give a triangular number (33930 = T₂₆₀).

The spelling of 197831952 in words is "one hundred ninety-seven million, eight hundred thirty-one thousand, nine hundred fifty-two".