2013795549 has 12 divisors (see below), whose sum is σ = 2910509212. Its totient is φ = 1341748800.

The previous prime is 2013795547. The next prime is 2013795577. The reversal of 2013795549 is 9455973102.

It is a happy number.

2013795549 is a `hidden beast` number, since 2 + 0 + 13 + 7 + 95 + 549 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 375003225 + 1638792324 = 19365^2 + 40482^2 .

It is not a de Polignac number, because 2013795549 - 2¹ = 2013795547 is a prime.

It is a super-2 number, since 2×2013795549² = 8110745026344422802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013795547) 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 11 ways as a sum of consecutive naturals, for example, 48592 + ... + 79929.

Almost surely, 2^2013795549 is an apocalyptic number.

It is an amenable number.

2013795549 is a deficient number, since it is larger than the sum of its proper divisors (896713663).

2013795549 is a wasteful number, since it uses less digits than its factorization.

2013795549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130268 (or 130265 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 2013795549 is about 44875.3334138032. Note that the first 3 decimals coincide. The cubic root of 2013795549 is about 1262.8112983822.

The spelling of 2013795549 in words is "two billion, thirteen million, seven hundred ninety-five thousand, five hundred forty-nine".