238705741 has 2 divisors, whose sum is σ = 238705742. Its totient is φ = 238705740.

The previous prime is 238705739. The next prime is 238705787. The reversal of 238705741 is 147507832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156875625 + 81830116 = 12525^2 + 9046^2 .

It is a cyclic number.

It is not a de Polignac number, because 238705741 - 2¹ = 238705739 is a prime.

Together with 238705739, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 238705741.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238705541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119352870 + 119352871.

It is an arithmetic number, because the mean of its divisors is an integer number (119352871).

Almost surely, 2^238705741 is an apocalyptic number.

It is an amenable number.

238705741 is a deficient number, since it is larger than the sum of its proper divisors (1).

238705741 is an equidigital number, since it uses as much as digits as its factorization.

238705741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 238705741 is about 15450.1048863754. The cubic root of 238705741 is about 620.3273860623.

The spelling of 238705741 in words is "two hundred thirty-eight million, seven hundred five thousand, seven hundred forty-one".