230001649 has 2 divisors, whose sum is σ = 230001650. Its totient is φ = 230001648.

The previous prime is 230001643. The next prime is 230001661. The reversal of 230001649 is 946100032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122257249 + 107744400 = 11057^2 + 10380^2 .

It is a cyclic number.

It is not a de Polignac number, because 230001649 - 2³ = 230001641 is a prime.

It is not a weakly prime, because it can be changed into another prime (230001641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115000824 + 115000825.

It is an arithmetic number, because the mean of its divisors is an integer number (115000825).

Almost surely, 2^230001649 is an apocalyptic number.

It is an amenable number.

230001649 is a deficient number, since it is larger than the sum of its proper divisors (1).

230001649 is an equidigital number, since it uses as much as digits as its factorization.

230001649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 230001649 is about 15165.8052539257. The cubic root of 230001649 is about 612.6940317658.

It can be divided in two parts, 23000 and 1649, that added together give a square (24649 = 157²).

The spelling of 230001649 in words is "two hundred thirty million, one thousand, six hundred forty-nine".