3135021636 has 72 divisors (see below), whose sum is σ = 7521335136. Its totient is φ = 1016312960.

The previous prime is 3135021619. The next prime is 3135021671. The reversal of 3135021636 is 6361205313.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6017056 + ... + 6017576.

It is an arithmetic number, because the mean of its divisors is an integer number (104462988).

Almost surely, 2^3135021636 is an apocalyptic number.

It is an amenable number.

3135021636 is an abundant number, since it is smaller than the sum of its proper divisors (4386313500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3135021636 is a wasteful number, since it uses less digits than its factorization.

3135021636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 3135021636 is about 55991.2639257233. The cubic root of 3135021636 is about 1463.5700516391.

Adding to 3135021636 its reverse (6361205313), we get a palindrome (9496226949).

The spelling of 3135021636 in words is "three billion, one hundred thirty-five million, twenty-one thousand, six hundred thirty-six".