231163029 has 6 divisors (see below), whose sum is σ = 333902166. Its totient is φ = 154108680.

The previous prime is 231162989. The next prime is 231163033. The reversal of 231163029 is 920361132.

231163029 is a `hidden beast` number, since 2 + 3 + 1 + 1 + 630 + 29 = 666.

231163029 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 only one way, i.e., 155002500 + 76160529 = 12450^2 + 8727^2 .

It is not a de Polignac number, because 231163029 - 2⁷ = 231162901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231162993 and 231163011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231163039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12842382 + ... + 12842399.

It is an arithmetic number, because the mean of its divisors is an integer number (55650361).

Almost surely, 2^231163029 is an apocalyptic number.

It is an amenable number.

231163029 is a deficient number, since it is larger than the sum of its proper divisors (102739137).

231163029 is a wasteful number, since it uses less digits than its factorization.

231163029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25684787 (or 25684784 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 231163029 is about 15204.0464679637. The cubic root of 231163029 is about 613.7235552033.

The spelling of 231163029 in words is "two hundred thirty-one million, one hundred sixty-three thousand, twenty-nine".