3135245221 has 4 divisors (see below), whose sum is σ = 3135527392. Its totient is φ = 3134963052.

The previous prime is 3135245177. The next prime is 3135245227. The reversal of 3135245221 is 1225425313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3135245221 - 2⁷ = 3135245093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3135245221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3135245227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123705 + ... + 146878.

It is an arithmetic number, because the mean of its divisors is an integer number (783881848).

Almost surely, 2^3135245221 is an apocalyptic number.

It is an amenable number.

3135245221 is a deficient number, since it is larger than the sum of its proper divisors (282171).

3135245221 is a wasteful number, since it uses less digits than its factorization.

3135245221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282170.

The product of its digits is 7200, while the sum is 28.

The square root of 3135245221 is about 55993.2604962419. The cubic root of 3135245221 is about 1463.6048440126.

The spelling of 3135245221 in words is "three billion, one hundred thirty-five million, two hundred forty-five thousand, two hundred twenty-one".