238360861 has 2 divisors, whose sum is σ = 238360862. Its totient is φ = 238360860.

The previous prime is 238360819. The next prime is 238360867. The reversal of 238360861 is 168063832.

238360861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130096836 + 108264025 = 11406^2 + 10405^2 .

It is a cyclic number.

It is not a de Polignac number, because 238360861 - 2¹³ = 238352669 is a prime.

It is a super-2 number, since 2×238360861² = 113631800113322642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 238360861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238360867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119180430 + 119180431.

It is an arithmetic number, because the mean of its divisors is an integer number (119180431).

Almost surely, 2^238360861 is an apocalyptic number.

It is an amenable number.

238360861 is a deficient number, since it is larger than the sum of its proper divisors (1).

238360861 is an equidigital number, since it uses as much as digits as its factorization.

238360861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 238360861 is about 15438.9397628205. The cubic root of 238360861 is about 620.0284941812.

The spelling of 238360861 in words is "two hundred thirty-eight million, three hundred sixty thousand, eight hundred sixty-one".