3219143485 has 4 divisors (see below), whose sum is σ = 3862972188. Its totient is φ = 2575314784.

The previous prime is 3219143467. The next prime is 3219143497. The reversal of 3219143485 is 5843419123.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1061912569 + 2157230916 = 32587^2 + 46446^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3219143485 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321914344 + ... + 321914353.

It is an arithmetic number, because the mean of its divisors is an integer number (965743047).

Almost surely, 2^3219143485 is an apocalyptic number.

It is an amenable number.

3219143485 is a deficient number, since it is larger than the sum of its proper divisors (643828703).

3219143485 is an equidigital number, since it uses as much as digits as its factorization.

3219143485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643828702.

The product of its digits is 103680, while the sum is 40.

The square root of 3219143485 is about 56737.4962877285. The cubic root of 3219143485 is about 1476.5453091253.

The spelling of 3219143485 in words is "three billion, two hundred nineteen million, one hundred forty-three thousand, four hundred eighty-five".