348861181 has 2 divisors, whose sum is σ = 348861182. Its totient is φ = 348861180.

The previous prime is 348861173. The next prime is 348861187. The reversal of 348861181 is 181168843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 340993156 + 7868025 = 18466^2 + 2805^2 .

It is an emirp because it is prime and its reverse (181168843) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 348861181 - 2³ = 348861173 is a prime.

It is a super-2 number, since 2×348861181² = 243408247217429522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348861187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174430590 + 174430591.

It is an arithmetic number, because the mean of its divisors is an integer number (174430591).

Almost surely, 2^348861181 is an apocalyptic number.

It is an amenable number.

348861181 is a deficient number, since it is larger than the sum of its proper divisors (1).

348861181 is an equidigital number, since it uses as much as digits as its factorization.

348861181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 40.

The square root of 348861181 is about 18677.8259173813. The cubic root of 348861181 is about 703.9647000691.

The spelling of 348861181 in words is "three hundred forty-eight million, eight hundred sixty-one thousand, one hundred eighty-one".