348744578137 has 2 divisors, whose sum is σ = 348744578138. Its totient is φ = 348744578136.

The previous prime is 348744578111. The next prime is 348744578141. The reversal of 348744578137 is 731875447843.

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., 295853317776 + 52891260361 = 543924^2 + 229981^2 .

It is a cyclic number.

It is not a de Polignac number, because 348744578137 - 2³¹ = 346597094489 is a prime.

It is not a weakly prime, because it can be changed into another prime (348744578437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174372289068 + 174372289069.

It is an arithmetic number, because the mean of its divisors is an integer number (174372289069).

Almost surely, 2^348744578137 is an apocalyptic number.

It is an amenable number.

348744578137 is a deficient number, since it is larger than the sum of its proper divisors (1).

348744578137 is an equidigital number, since it uses as much as digits as its factorization.

348744578137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63221760, while the sum is 61.

The spelling of 348744578137 in words is "three hundred forty-eight billion, seven hundred forty-four million, five hundred seventy-eight thousand, one hundred thirty-seven".