230131505 has 8 divisors (see below), whose sum is σ = 282033792. Its totient is φ = 180187888.

The previous prime is 230131487. The next prime is 230131513. The reversal of 230131505 is 505131032.

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 230131505 - 2¹² = 230127409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489407 + ... + 489876.

It is an arithmetic number, because the mean of its divisors is an integer number (35254224).

Almost surely, 2^230131505 is an apocalyptic number.

It is an amenable number.

230131505 is a deficient number, since it is larger than the sum of its proper divisors (51902287).

230131505 is an equidigital number, since it uses as much as digits as its factorization.

230131505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979335.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 230131505 is about 15170.0858600075. The cubic root of 230131505 is about 612.8093164866.

Adding to 230131505 its reverse (505131032), we get a palindrome (735262537).

The spelling of 230131505 in words is "two hundred thirty million, one hundred thirty-one thousand, five hundred five".