197352831 has 8 divisors (see below), whose sum is σ = 283378480. Its totient is φ = 121447872.

The previous prime is 197352821. The next prime is 197352863. The reversal of 197352831 is 138253791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 197352831 - 2⁷ = 197352703 is a prime.

It is a super-2 number, since 2×197352831² = 77896279807429122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 5060329 = 197352831 / (1 + 9 + 7 + 3 + 5 + 2 + 8 + 3 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 197352831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197352821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2530126 + ... + 2530203.

It is an arithmetic number, because the mean of its divisors is an integer number (35422310).

Almost surely, 2^197352831 is an apocalyptic number.

197352831 is a deficient number, since it is larger than the sum of its proper divisors (86025649).

197352831 is a wasteful number, since it uses less digits than its factorization.

197352831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060345.

The product of its digits is 45360, while the sum is 39.

The square root of 197352831 is about 14048.2323087284. The cubic root of 197352831 is about 582.2119567851.

The spelling of 197352831 in words is "one hundred ninety-seven million, three hundred fifty-two thousand, eight hundred thirty-one".