547988149 has 4 divisors (see below), whose sum is σ = 580222764. Its totient is φ = 515753536.

The previous prime is 547988143. The next prime is 547988171. The reversal of 547988149 is 941889745.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 370832049 + 177156100 = 19257^2 + 13310^2 .

It is a cyclic number.

It is not a de Polignac number, because 547988149 - 2⁵ = 547988117 is a prime.

It is a super-2 number, since 2×547988149² = 600582022888892402, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 547988149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (547988143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16117282 + ... + 16117315.

It is an arithmetic number, because the mean of its divisors is an integer number (145055691).

Almost surely, 2^547988149 is an apocalyptic number.

It is an amenable number.

547988149 is a deficient number, since it is larger than the sum of its proper divisors (32234615).

547988149 is a wasteful number, since it uses less digits than its factorization.

547988149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32234614.

The product of its digits is 2903040, while the sum is 55.

The square root of 547988149 is about 23409.1466952557. The cubic root of 547988149 is about 818.3210486286.

The spelling of 547988149 in words is "five hundred forty-seven million, nine hundred eighty-eight thousand, one hundred forty-nine".