3135243421 has 8 divisors (see below), whose sum is σ = 3216605760. Its totient is φ = 3054821952.

The previous prime is 3135243403. The next prime is 3135243431. The reversal of 3135243421 is 1243425313.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3135243421 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 3135243421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3135243401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228465 + ... + 241798.

It is an arithmetic number, because the mean of its divisors is an integer number (402075720).

Almost surely, 2^3135243421 is an apocalyptic number.

It is an amenable number.

3135243421 is a deficient number, since it is larger than the sum of its proper divisors (81362339).

3135243421 is a wasteful number, since it uses less digits than its factorization.

3135243421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470435.

The product of its digits is 8640, while the sum is 28.

The square root of 3135243421 is about 55993.2444228766. The cubic root of 3135243421 is about 1463.6045639187.

Adding to 3135243421 its reverse (1243425313), we get a palindrome (4378668734).

The spelling of 3135243421 in words is "three billion, one hundred thirty-five million, two hundred forty-three thousand, four hundred twenty-one".