3215322545 has 8 divisors (see below), whose sum is σ = 3859575720. Its totient is φ = 2571465600.

The previous prime is 3215322479. The next prime is 3215322547. The reversal of 3215322545 is 5452235123.

It can be written as a sum of positive squares in 4 ways, for example, as 60590656 + 3154731889 = 7784^2 + 56167^2 .

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

It is not a de Polignac number, because 3215322545 - 2⁸ = 3215322289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3215322547) 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, 80900 + ... + 113909.

It is an arithmetic number, because the mean of its divisors is an integer number (482446965).

Almost surely, 2^3215322545 is an apocalyptic number.

It is an amenable number.

3215322545 is a deficient number, since it is larger than the sum of its proper divisors (644253175).

3215322545 is a wasteful number, since it uses less digits than its factorization.

3215322545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198115.

The product of its digits is 36000, while the sum is 32.

The square root of 3215322545 is about 56703.8142015156. The cubic root of 3215322545 is about 1475.9608861057.

Adding to 3215322545 its reverse (5452235123), we get a palindrome (8667557668).

The spelling of 3215322545 in words is "three billion, two hundred fifteen million, three hundred twenty-two thousand, five hundred forty-five".