230215549 has 2 divisors, whose sum is σ = 230215550. Its totient is φ = 230215548.

The previous prime is 230215511. The next prime is 230215577. The reversal of 230215549 is 945512032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123609924 + 106605625 = 11118^2 + 10325^2 .

It is a cyclic number.

It is not a de Polignac number, because 230215549 - 2¹³ = 230207357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230215549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230215049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115107774 + 115107775.

It is an arithmetic number, because the mean of its divisors is an integer number (115107775).

Almost surely, 2^230215549 is an apocalyptic number.

It is an amenable number.

230215549 is a deficient number, since it is larger than the sum of its proper divisors (1).

230215549 is an equidigital number, since it uses as much as digits as its factorization.

230215549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 230215549 is about 15172.8556639810. The cubic root of 230215549 is about 612.8839067052.

The spelling of 230215549 in words is "two hundred thirty million, two hundred fifteen thousand, five hundred forty-nine".