239742182401 has 2 divisors, whose sum is σ = 239742182402. Its totient is φ = 239742182400.

The previous prime is 239742182399. The next prime is 239742182411. The reversal of 239742182401 is 104281247932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230284814400 + 9457368001 = 479880^2 + 97249^2 .

It is a cyclic number.

It is not a de Polignac number, because 239742182401 - 2¹ = 239742182399 is a prime.

Together with 239742182399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (239742182411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119871091200 + 119871091201.

It is an arithmetic number, because the mean of its divisors is an integer number (119871091201).

Almost surely, 2^239742182401 is an apocalyptic number.

It is an amenable number.

239742182401 is a deficient number, since it is larger than the sum of its proper divisors (1).

239742182401 is an equidigital number, since it uses as much as digits as its factorization.

239742182401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 239742182401 in words is "two hundred thirty-nine billion, seven hundred forty-two million, one hundred eighty-two thousand, four hundred one".