2013213544 has 8 divisors (see below), whose sum is σ = 3774775410. Its totient is φ = 1006606768.

The previous prime is 2013213539. The next prime is 2013213569. The reversal of 2013213544 is 4453123102.

It can be written as a sum of positive squares in only one way, i.e., 1079911044 + 933302500 = 32862^2 + 30550^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125825839 + ... + 125825854.

Almost surely, 2^2013213544 is an apocalyptic number.

It is an amenable number.

2013213544 is a deficient number, since it is larger than the sum of its proper divisors (1761561866).

2013213544 is a wasteful number, since it uses less digits than its factorization.

2013213544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251651699 (or 251651695 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2013213544 is about 44868.8482580064. The cubic root of 2013213544 is about 1262.6896320582.

Adding to 2013213544 its reverse (4453123102), we get a palindrome (6466336646).

The spelling of 2013213544 in words is "two billion, thirteen million, two hundred thirteen thousand, five hundred forty-four".