231613353 has 12 divisors (see below), whose sum is σ = 334691188. Its totient is φ = 154344960.

The previous prime is 231613309. The next prime is 231613357. The reversal of 231613353 is 353316132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 95004009 + 136609344 = 9747^2 + 11688^2 .

It is not a de Polignac number, because 231613353 - 2¹⁶ = 231547817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231613357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29793 + ... + 36753.

Almost surely, 2^231613353 is an apocalyptic number.

It is an amenable number.

231613353 is a deficient number, since it is larger than the sum of its proper divisors (103077835).

231613353 is a wasteful number, since it uses less digits than its factorization.

231613353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10664 (or 10661 counting only the distinct ones).

The product of its digits is 4860, while the sum is 27.

The square root of 231613353 is about 15218.8486095368. The cubic root of 231613353 is about 614.1218241580.

Adding to 231613353 its reverse (353316132), we get a palindrome (584929485).

The spelling of 231613353 in words is "two hundred thirty-one million, six hundred thirteen thousand, three hundred fifty-three".