549090143447 has 4 divisors (see below), whose sum is σ = 549092419176. Its totient is φ = 549087867720.

The previous prime is 549090143429. The next prime is 549090143453. The reversal of 549090143447 is 744341090945.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 549090143447 - 2¹⁰ = 549090142423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 549090143395 and 549090143404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549090143947) 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, 726329 + ... + 1275042.

It is an arithmetic number, because the mean of its divisors is an integer number (137273104794).

Almost surely, 2^549090143447 is an apocalyptic number.

549090143447 is a deficient number, since it is larger than the sum of its proper divisors (2275729).

549090143447 is a wasteful number, since it uses less digits than its factorization.

549090143447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275728.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 549090143447 in words is "five hundred forty-nine billion, ninety million, one hundred forty-three thousand, four hundred forty-seven".