2101513504 has 12 divisors (see below), whose sum is σ = 4137354774. Its totient is φ = 1050756736.

The previous prime is 2101513499. The next prime is 2101513511. The reversal of 2101513504 is 4053151012.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1432773904 + 668739600 = 37852^2 + 25860^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 32836117 + ... + 32836180.

Almost surely, 2^2101513504 is an apocalyptic number.

It is an amenable number.

2101513504 is a deficient number, since it is larger than the sum of its proper divisors (2035841270).

2101513504 is an equidigital number, since it uses as much as digits as its factorization.

2101513504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65672307 (or 65672299 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 2101513504 is about 45842.2676576977. The cubic root of 2101513504 is about 1280.8867358214.

Adding to 2101513504 its reverse (4053151012), we get a palindrome (6154664516).

The spelling of 2101513504 in words is "two billion, one hundred one million, five hundred thirteen thousand, five hundred four".