238614561 has 6 divisors (see below), whose sum is σ = 344665490. Its totient is φ = 159076368.

The previous prime is 238614553. The next prime is 238614583. The reversal of 238614561 is 165416832.

It is a happy number.

238614561 is a `hidden beast` number, since 2 + 3 + 86 + 14 + 561 = 666.

It can be written as a sum of positive squares in only one way, i.e., 229704336 + 8910225 = 15156^2 + 2985^2 .

It is not a de Polignac number, because 238614561 - 2³ = 238614553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (238614461) 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 in 5 ways as a sum of consecutive naturals, for example, 13256356 + ... + 13256373.

Almost surely, 2^238614561 is an apocalyptic number.

It is an amenable number.

238614561 is a deficient number, since it is larger than the sum of its proper divisors (106050929).

238614561 is a wasteful number, since it uses less digits than its factorization.

238614561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26512735 (or 26512732 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 238614561 is about 15447.1538155092. The cubic root of 238614561 is about 620.2483924947.

The spelling of 238614561 in words is "two hundred thirty-eight million, six hundred fourteen thousand, five hundred sixty-one".