3215197305 has 24 divisors (see below), whose sum is σ = 5590952640. Its totient is φ = 1709250720.

The previous prime is 3215197303. The next prime is 3215197313. The reversal of 3215197305 is 5037915123.

3215197305 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3215197305 - 2¹ = 3215197303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3215197305.

It is not an unprimeable number, because it can be changed into a prime (3215197303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 100875 + ... + 128864.

It is an arithmetic number, because the mean of its divisors is an integer number (232956360).

Almost surely, 2^3215197305 is an apocalyptic number.

It is an amenable number.

3215197305 is a deficient number, since it is larger than the sum of its proper divisors (2375755335).

3215197305 is a wasteful number, since it uses less digits than its factorization.

3215197305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230061 (or 230058 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 3215197305 is about 56702.7098558790. The cubic root of 3215197305 is about 1475.9417224771.

The spelling of 3215197305 in words is "three billion, two hundred fifteen million, one hundred ninety-seven thousand, three hundred five".