230651649 has 6 divisors (see below), whose sum is σ = 333163506. Its totient is φ = 153767760.

The previous prime is 230651627. The next prime is 230651653. The reversal of 230651649 is 946156032.

It is a happy number.

230651649 is a `hidden beast` number, since 2 + 3 + 0 + 6 + 5 + 1 + 649 = 666.

It can be written as a sum of positive squares in only one way, i.e., 147258225 + 83393424 = 12135^2 + 9132^2 .

It is not a de Polignac number, because 230651649 - 2¹² = 230647553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230651689) 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 in 5 ways as a sum of consecutive naturals, for example, 12813972 + ... + 12813989.

It is an arithmetic number, because the mean of its divisors is an integer number (55527251).

Almost surely, 2^230651649 is an apocalyptic number.

It is an amenable number.

230651649 is a deficient number, since it is larger than the sum of its proper divisors (102511857).

230651649 is a wasteful number, since it uses less digits than its factorization.

230651649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25627967 (or 25627964 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 230651649 is about 15187.2199233434. The cubic root of 230651649 is about 613.2706603086.

The spelling of 230651649 in words is "two hundred thirty million, six hundred fifty-one thousand, six hundred forty-nine".