197925231 has 16 divisors (see below), whose sum is σ = 304992000. Its totient is φ = 111828288.

The previous prime is 197925199. The next prime is 197925241. The reversal of 197925231 is 132529791.

It is not a de Polignac number, because 197925231 - 2⁵ = 197925199 is a prime.

It is a super-2 number, since 2×197925231² = 78348794132806722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 197925231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197925241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51081 + ... + 54818.

It is an arithmetic number, because the mean of its divisors is an integer number (19062000).

Almost surely, 2^197925231 is an apocalyptic number.

197925231 is a deficient number, since it is larger than the sum of its proper divisors (107066769).

197925231 is a wasteful number, since it uses less digits than its factorization.

197925231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105998.

The product of its digits is 34020, while the sum is 39.

The square root of 197925231 is about 14068.5902278800. The cubic root of 197925231 is about 582.7742938741.

The spelling of 197925231 in words is "one hundred ninety-seven million, nine hundred twenty-five thousand, two hundred thirty-one".