3503721045 has 16 divisors (see below), whose sum is σ = 6115586112. Its totient is φ = 1698773760.

The previous prime is 3503721041. The next prime is 3503721047. The reversal of 3503721045 is 5401273053.

It is not a de Polignac number, because 3503721045 - 2² = 3503721041 is a prime.

It is a super-2 number, since 2×3503721045² = 24552122322351784050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3503721041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10617172 + ... + 10617501.

It is an arithmetic number, because the mean of its divisors is an integer number (382224132).

Almost surely, 2^3503721045 is an apocalyptic number.

It is an amenable number.

3503721045 is a deficient number, since it is larger than the sum of its proper divisors (2611865067).

3503721045 is a wasteful number, since it uses less digits than its factorization.

3503721045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21234692.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 3503721045 is about 59192.2380468926. The cubic root of 3503721045 is about 1518.8323565223.

Adding to 3503721045 its reverse (5401273053), we get a palindrome (8904994098).

The spelling of 3503721045 in words is "three billion, five hundred three million, seven hundred twenty-one thousand, forty-five".