230231549 has 2 divisors, whose sum is σ = 230231550. Its totient is φ = 230231548.

The previous prime is 230231539. The next prime is 230231557. The reversal of 230231549 is 945132032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206123449 + 24108100 = 14357^2 + 4910^2 .

It is a cyclic number.

It is not a de Polignac number, because 230231549 - 2¹² = 230227453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230231539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115115774 + 115115775.

It is an arithmetic number, because the mean of its divisors is an integer number (115115775).

Almost surely, 2^230231549 is an apocalyptic number.

It is an amenable number.

230231549 is a deficient number, since it is larger than the sum of its proper divisors (1).

230231549 is an equidigital number, since it uses as much as digits as its factorization.

230231549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 230231549 is about 15173.3829121920. The cubic root of 230231549 is about 612.8981048707.

The spelling of 230231549 in words is "two hundred thirty million, two hundred thirty-one thousand, five hundred forty-nine".