549472101 has 4 divisors (see below), whose sum is σ = 732629472. Its totient is φ = 366314732.

The previous prime is 549472081. The next prime is 549472109. The reversal of 549472101 is 101274945.

It is a happy number.

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 not a de Polignac number, because 549472101 - 2⁷ = 549471973 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549472109) 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 3 ways as a sum of consecutive naturals, for example, 91578681 + ... + 91578686.

It is an arithmetic number, because the mean of its divisors is an integer number (183157368).

Almost surely, 2^549472101 is an apocalyptic number.

It is an amenable number.

549472101 is a deficient number, since it is larger than the sum of its proper divisors (183157371).

549472101 is a wasteful number, since it uses less digits than its factorization.

549472101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183157370.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 549472101 is about 23440.8212526780. The cubic root of 549472101 is about 819.0590540353.

The spelling of 549472101 in words is "five hundred forty-nine million, four hundred seventy-two thousand, one hundred one".