230457649 has 2 divisors, whose sum is σ = 230457650. Its totient is φ = 230457648.

The previous prime is 230457641. The next prime is 230457671. The reversal of 230457649 is 946754032.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221861025 + 8596624 = 14895^2 + 2932^2 .

It is a cyclic number.

It is not a de Polignac number, because 230457649 - 2³ = 230457641 is a prime.

It is a super-2 number, since 2×230457649² = 106221455965214402, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (230457641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115228824 + 115228825.

It is an arithmetic number, because the mean of its divisors is an integer number (115228825).

Almost surely, 2^230457649 is an apocalyptic number.

It is an amenable number.

230457649 is a deficient number, since it is larger than the sum of its proper divisors (1).

230457649 is an equidigital number, since it uses as much as digits as its factorization.

230457649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 230457649 is about 15180.8316307111. The cubic root of 230457649 is about 613.0986724061.

The spelling of 230457649 in words is "two hundred thirty million, four hundred fifty-seven thousand, six hundred forty-nine".