231346153 has 4 divisors (see below), whose sum is σ = 232683588. Its totient is φ = 230008720.

The previous prime is 231346151. The next prime is 231346169. The reversal of 231346153 is 351643132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 113145769 + 118200384 = 10637^2 + 10872^2 .

It is a cyclic number.

It is not a de Polignac number, because 231346153 - 2¹ = 231346151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231346151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 668458 + ... + 668803.

It is an arithmetic number, because the mean of its divisors is an integer number (58170897).

Almost surely, 2^231346153 is an apocalyptic number.

It is an amenable number.

231346153 is a deficient number, since it is larger than the sum of its proper divisors (1337435).

231346153 is a wasteful number, since it uses less digits than its factorization.

231346153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337434.

The product of its digits is 6480, while the sum is 28.

The square root of 231346153 is about 15210.0674883447. The cubic root of 231346153 is about 613.8855733954.

Adding to 231346153 its reverse (351643132), we get a palindrome (582989285).

The spelling of 231346153 in words is "two hundred thirty-one million, three hundred forty-six thousand, one hundred fifty-three".