3145715213 has 4 divisors (see below), whose sum is σ = 3199032480. Its totient is φ = 3092397948.

The previous prime is 3145715179. The next prime is 3145715219. The reversal of 3145715213 is 3125175413.

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 a de Polignac number, because none of the positive numbers 2^k-3145715213 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 3145715213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145715219) 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, 26658545 + ... + 26658662.

It is an arithmetic number, because the mean of its divisors is an integer number (799758120).

Almost surely, 2^3145715213 is an apocalyptic number.

It is an amenable number.

3145715213 is a deficient number, since it is larger than the sum of its proper divisors (53317267).

3145715213 is an equidigital number, since it uses as much as digits as its factorization.

3145715213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53317266.

The product of its digits is 12600, while the sum is 32.

The square root of 3145715213 is about 56086.6758954388. The cubic root of 3145715213 is about 1465.2322451329.

The spelling of 3145715213 in words is "three billion, one hundred forty-five million, seven hundred fifteen thousand, two hundred thirteen".