548129849 has 4 divisors (see below), whose sum is σ = 551760000. Its totient is φ = 544499700.

The previous prime is 548129821. The next prime is 548129867. The reversal of 548129849 is 948921845.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-548129849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 548129797 and 548129806.

It is not an unprimeable number, because it can be changed into a prime (548129809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1814849 + ... + 1815150.

It is an arithmetic number, because the mean of its divisors is an integer number (137940000).

Almost surely, 2^548129849 is an apocalyptic number.

It is an amenable number.

548129849 is a deficient number, since it is larger than the sum of its proper divisors (3630151).

548129849 is a wasteful number, since it uses less digits than its factorization.

548129849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3630150.

The product of its digits is 829440, while the sum is 50.

The square root of 548129849 is about 23412.1730943541. The cubic root of 548129849 is about 818.3915769782.

The spelling of 548129849 in words is "five hundred forty-eight million, one hundred twenty-nine thousand, eight hundred forty-nine".