231941197 has 8 divisors (see below), whose sum is σ = 242706456. Its totient is φ = 221412672.

The previous prime is 231941191. The next prime is 231941231. The reversal of 231941197 is 791149132.

231941197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 61011721 + 170929476 = 7811^2 + 13074^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 231941197 - 2¹⁹ = 231416909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231941191) 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, 57178 + ... + 61099.

It is an arithmetic number, because the mean of its divisors is an integer number (30338307).

Almost surely, 2^231941197 is an apocalyptic number.

It is an amenable number.

231941197 is a deficient number, since it is larger than the sum of its proper divisors (10765259).

231941197 is a wasteful number, since it uses less digits than its factorization.

231941197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118367.

The product of its digits is 13608, while the sum is 37.

The square root of 231941197 is about 15229.6157863552. The cubic root of 231941197 is about 614.4114465418.

The spelling of 231941197 in words is "two hundred thirty-one million, nine hundred forty-one thousand, one hundred ninety-seven".