231159213 has 12 divisors (see below), whose sum is σ = 334028448. Its totient is φ = 154045320.

The previous prime is 231159197. The next prime is 231159277. The reversal of 231159213 is 312951132.

It is not a de Polignac number, because 231159213 - 2⁴ = 231159197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231159413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42118 + ... + 47288.

It is an arithmetic number, because the mean of its divisors is an integer number (27835704).

Almost surely, 2^231159213 is an apocalyptic number.

It is an amenable number.

231159213 is a deficient number, since it is larger than the sum of its proper divisors (102869235).

231159213 is a wasteful number, since it uses less digits than its factorization.

231159213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10144 (or 10141 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 231159213 is about 15203.9209745381. The cubic root of 231159213 is about 613.7201781034.

The spelling of 231159213 in words is "two hundred thirty-one million, one hundred fifty-nine thousand, two hundred thirteen".