231245506 has 8 divisors (see below), whose sum is σ = 350236224. Its totient is φ = 114500100.

The previous prime is 231245503. The next prime is 231245513. The reversal of 231245506 is 605542132.

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

It is not an unprimeable number, because it can be changed into a prime (231245503) 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, 561070 + ... + 561481.

It is an arithmetic number, because the mean of its divisors is an integer number (43779528).

Almost surely, 2^231245506 is an apocalyptic number.

231245506 is a deficient number, since it is larger than the sum of its proper divisors (118990718).

231245506 is a wasteful number, since it uses less digits than its factorization.

231245506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122656.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 231245506 is about 15206.7585632179. The cubic root of 231245506 is about 613.7965369701.

Adding to 231245506 its reverse (605542132), we get a palindrome (836787638).

The spelling of 231245506 in words is "two hundred thirty-one million, two hundred forty-five thousand, five hundred six".