231241293 has 24 divisors (see below), whose sum is σ = 354260088. Its totient is φ = 144847872.

The previous prime is 231241291. The next prime is 231241337. The reversal of 231241293 is 392142132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23794884 + 207446409 = 4878^2 + 14403^2 .

It is not a de Polignac number, because 231241293 - 2¹ = 231241291 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231241291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142555 + ... + 144167.

It is an arithmetic number, because the mean of its divisors is an integer number (14760837).

Almost surely, 2^231241293 is an apocalyptic number.

It is an amenable number.

231241293 is a deficient number, since it is larger than the sum of its proper divisors (123018795).

231241293 is a wasteful number, since it uses less digits than its factorization.

231241293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573 (or 2570 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 231241293 is about 15206.6200386542. The cubic root of 231241293 is about 613.7928094159.

The spelling of 231241293 in words is "two hundred thirty-one million, two hundred forty-one thousand, two hundred ninety-three".