348188861 has 2 divisors, whose sum is σ = 348188862. Its totient is φ = 348188860.

The previous prime is 348188783. The next prime is 348188879. The reversal of 348188861 is 168881843.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246804100 + 101384761 = 15710^2 + 10069^2 .

It is a cyclic number.

It is not a de Polignac number, because 348188861 - 2¹⁴ = 348172477 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348188161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174094430 + 174094431.

It is an arithmetic number, because the mean of its divisors is an integer number (174094431).

Almost surely, 2^348188861 is an apocalyptic number.

It is an amenable number.

348188861 is a deficient number, since it is larger than the sum of its proper divisors (1).

348188861 is an equidigital number, since it uses as much as digits as its factorization.

348188861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 294912, while the sum is 47.

The square root of 348188861 is about 18659.8194257072. The cubic root of 348188861 is about 703.5121858717.

The spelling of 348188861 in words is "three hundred forty-eight million, one hundred eighty-eight thousand, eight hundred sixty-one".