348544561 has 2 divisors, whose sum is σ = 348544562. Its totient is φ = 348544560.

The previous prime is 348544549. The next prime is 348544583. The reversal of 348544561 is 165445843.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 324720400 + 23824161 = 18020^2 + 4881^2 .

It is a cyclic number.

It is not a de Polignac number, because 348544561 - 2¹⁷ = 348413489 is a prime.

It is a super-2 number, since 2×348544561² = 242966622005365442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (348544061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174272280 + 174272281.

It is an arithmetic number, because the mean of its divisors is an integer number (174272281).

Almost surely, 2^348544561 is an apocalyptic number.

It is an amenable number.

348544561 is a deficient number, since it is larger than the sum of its proper divisors (1).

348544561 is an equidigital number, since it uses as much as digits as its factorization.

348544561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 230400, while the sum is 40.

The square root of 348544561 is about 18669.3481675178. The cubic root of 348544561 is about 703.7516671307.

The spelling of 348544561 in words is "three hundred forty-eight million, five hundred forty-four thousand, five hundred sixty-one".