231159349 has 2 divisors, whose sum is σ = 231159350. Its totient is φ = 231159348.

The previous prime is 231159337. The next prime is 231159359. The reversal of 231159349 is 943951132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207878724 + 23280625 = 14418^2 + 4825^2 .

It is a cyclic number.

It is not a de Polignac number, because 231159349 - 2¹¹ = 231157301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231159329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115579674 + 115579675.

It is an arithmetic number, because the mean of its divisors is an integer number (115579675).

Almost surely, 2^231159349 is an apocalyptic number.

It is an amenable number.

231159349 is a deficient number, since it is larger than the sum of its proper divisors (1).

231159349 is an equidigital number, since it uses as much as digits as its factorization.

231159349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 37.

The square root of 231159349 is about 15203.9254470679. The cubic root of 231159349 is about 613.7202984619.

The spelling of 231159349 in words is "two hundred thirty-one million, one hundred fifty-nine thousand, three hundred forty-nine".