231919601 has 2 divisors, whose sum is σ = 231919602. Its totient is φ = 231919600.

The previous prime is 231919577. The next prime is 231919607. The reversal of 231919601 is 106919132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177528976 + 54390625 = 13324^2 + 7375^2 .

It is a cyclic number.

It is not a de Polignac number, because 231919601 - 2⁶ = 231919537 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (231919607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115959800 + 115959801.

It is an arithmetic number, because the mean of its divisors is an integer number (115959801).

Almost surely, 2^231919601 is an apocalyptic number.

It is an amenable number.

231919601 is a deficient number, since it is larger than the sum of its proper divisors (1).

231919601 is an equidigital number, since it uses as much as digits as its factorization.

231919601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 231919601 is about 15228.9067565600. The cubic root of 231919601 is about 614.3923767062.

The spelling of 231919601 in words is "two hundred thirty-one million, nine hundred nineteen thousand, six hundred one".