348124781 has 2 divisors, whose sum is σ = 348124782. Its totient is φ = 348124780.

The previous prime is 348124753. The next prime is 348124789. The reversal of 348124781 is 187421843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 333646756 + 14478025 = 18266^2 + 3805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-348124781 is a prime.

It is a super-2 number, since 2×348124781² = 242381726292595922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348124789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174062390 + 174062391.

It is an arithmetic number, because the mean of its divisors is an integer number (174062391).

Almost surely, 2^348124781 is an apocalyptic number.

It is an amenable number.

348124781 is a deficient number, since it is larger than the sum of its proper divisors (1).

348124781 is an equidigital number, since it uses as much as digits as its factorization.

348124781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43008, while the sum is 38.

The square root of 348124781 is about 18658.1022882822. The cubic root of 348124781 is about 703.4690255530.

It can be divided in two parts, 34812 and 4781, that added together give a palindrome (39593).

The spelling of 348124781 in words is "three hundred forty-eight million, one hundred twenty-four thousand, seven hundred eighty-one".