3217336145 has 4 divisors (see below), whose sum is σ = 3860803380. Its totient is φ = 2573868912.

The previous prime is 3217336141. The next prime is 3217336151. The reversal of 3217336145 is 5416337123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5416337123 = 2557 ⋅2118239.

It can be written as a sum of positive squares in 2 ways, for example, as 370793536 + 2846542609 = 19256^2 + 53353^2 .

It is a cyclic number.

It is not a de Polignac number, because 3217336145 - 2² = 3217336141 is a prime.

It is a super-2 number, since 2×3217336145² = 20702503739846922050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3217336141) 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, 321733610 + ... + 321733619.

It is an arithmetic number, because the mean of its divisors is an integer number (965200845).

Almost surely, 2^3217336145 is an apocalyptic number.

It is an amenable number.

3217336145 is a deficient number, since it is larger than the sum of its proper divisors (643467235).

3217336145 is an equidigital number, since it uses as much as digits as its factorization.

3217336145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643467234.

The product of its digits is 45360, while the sum is 35.

The square root of 3217336145 is about 56721.5668418989. The cubic root of 3217336145 is about 1476.2689292967.

The spelling of 3217336145 in words is "three billion, two hundred seventeen million, three hundred thirty-six thousand, one hundred forty-five".