231430135 has 8 divisors (see below), whose sum is σ = 279714960. Its totient is φ = 183811584.

The previous prime is 231430123. The next prime is 231430139. The reversal of 231430135 is 531034132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231430135 - 2⁷ = 231430007 is a prime.

It is a super-2 number, since 2×231430135² = 107119814772236450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231430139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165802 + ... + 167191.

It is an arithmetic number, because the mean of its divisors is an integer number (34964370).

Almost surely, 2^231430135 is an apocalyptic number.

231430135 is a deficient number, since it is larger than the sum of its proper divisors (48284825).

231430135 is a wasteful number, since it uses less digits than its factorization.

231430135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333137.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 231430135 is about 15212.8279751005. The cubic root of 231430135 is about 613.9598475230.

Adding to 231430135 its reverse (531034132), we get a palindrome (762464267).

The spelling of 231430135 in words is "two hundred thirty-one million, four hundred thirty thousand, one hundred thirty-five".