2148264549 has 6 divisors (see below), whose sum is σ = 3103048806. Its totient is φ = 1432176360.

The previous prime is 2148264527. The next prime is 2148264611. The reversal of 2148264549 is 9454628412.

It is a happy number.

2148264549 is a `hidden beast` number, since 2 + 1 + 48 + 2 + 64 + 549 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1637820900 + 510443649 = 40470^2 + 22593^2 .

It is not a de Polignac number, because 2148264549 - 2²⁸ = 1879829093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148264749) 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 5 ways as a sum of consecutive naturals, for example, 119348022 + ... + 119348039.

It is an arithmetic number, because the mean of its divisors is an integer number (517174801).

Almost surely, 2^2148264549 is an apocalyptic number.

It is an amenable number.

2148264549 is a deficient number, since it is larger than the sum of its proper divisors (954784257).

2148264549 is a wasteful number, since it uses less digits than its factorization.

2148264549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238696067 (or 238696064 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 2148264549 is about 46349.3748501530. The cubic root of 2148264549 is about 1290.3155186392.

The spelling of 2148264549 in words is "two billion, one hundred forty-eight million, two hundred sixty-four thousand, five hundred forty-nine".