548139313 has 8 divisors (see below), whose sum is σ = 580705632. Its totient is φ = 515608896.

The previous prime is 548139311. The next prime is 548139343. The reversal of 548139313 is 313931845.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 548139313 - 2¹ = 548139311 is a prime.

It is a super-2 number, since 2×548139313² = 600913412912223938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (548139311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26506 + ... + 42412.

It is an arithmetic number, because the mean of its divisors is an integer number (72588204).

Almost surely, 2^548139313 is an apocalyptic number.

It is an amenable number.

548139313 is a deficient number, since it is larger than the sum of its proper divisors (32566319).

548139313 is a wasteful number, since it uses less digits than its factorization.

548139313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17951.

The product of its digits is 38880, while the sum is 37.

The square root of 548139313 is about 23412.3752105591. The cubic root of 548139313 is about 818.3962870625.

The spelling of 548139313 in words is "five hundred forty-eight million, one hundred thirty-nine thousand, three hundred thirteen".