231500601 has 24 divisors (see below), whose sum is σ = 349277760. Its totient is φ = 147604896.

The previous prime is 231500597. The next prime is 231500603. The reversal of 231500601 is 106005132.

It is not a de Polignac number, because 231500601 - 2² = 231500597 is a prime.

It is a super-2 number, since 2×231500601² = 107185056526722402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231500603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13756 + ... + 25538.

It is an arithmetic number, because the mean of its divisors is an integer number (14553240).

Almost surely, 2^231500601 is an apocalyptic number.

It is an amenable number.

231500601 is a deficient number, since it is larger than the sum of its proper divisors (117777159).

231500601 is a wasteful number, since it uses less digits than its factorization.

231500601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11885 (or 11882 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 231500601 is about 15215.1438047756. The cubic root of 231500601 is about 614.0221541660.

Adding to 231500601 its reverse (106005132), we get a palindrome (337505733).

The spelling of 231500601 in words is "two hundred thirty-one million, five hundred thousand, six hundred one".