348012561 has 16 divisors (see below), whose sum is σ = 500815616. Its totient is φ = 213687936.

The previous prime is 348012547. The next prime is 348012611. The reversal of 348012561 is 165210843.

It is not a de Polignac number, because 348012561 - 2⁵ = 348012529 is a prime.

It is a super-2 number, since 2×348012561² = 242225485227557442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (348012061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8421 + ... + 27693.

It is an arithmetic number, because the mean of its divisors is an integer number (31300976).

Almost surely, 2^348012561 is an apocalyptic number.

It is an amenable number.

348012561 is a deficient number, since it is larger than the sum of its proper divisors (152803055).

348012561 is a wasteful number, since it uses less digits than its factorization.

348012561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19752.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 348012561 is about 18655.0947732784. The cubic root of 348012561 is about 703.3934283510.

The spelling of 348012561 in words is "three hundred forty-eight million, twelve thousand, five hundred sixty-one".