197824131 has 12 divisors (see below), whose sum is σ = 287327040. Its totient is φ = 131153040.

The previous prime is 197824117. The next prime is 197824141. The reversal of 197824131 is 131428791.

It is a happy number.

197824131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-197824131 is a prime.

It is a super-2 number, since 2×197824131² = 78268773611810322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (197824141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59091 + ... + 62348.

It is an arithmetic number, because the mean of its divisors is an integer number (23943920).

Almost surely, 2^197824131 is an apocalyptic number.

197824131 is a deficient number, since it is larger than the sum of its proper divisors (89502909).

197824131 is a wasteful number, since it uses less digits than its factorization.

197824131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121626 (or 121623 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 197824131 is about 14064.9966583714. The cubic root of 197824131 is about 582.6750501420.

The spelling of 197824131 in words is "one hundred ninety-seven million, eight hundred twenty-four thousand, one hundred thirty-one".