3215312045 has 32 divisors (see below), whose sum is σ = 4393315584. Its totient is φ = 2238246400.

The previous prime is 3215312029. The next prime is 3215312081. The reversal of 3215312045 is 5402135123.

It is a happy number.

It is not a de Polignac number, because 3215312045 - 2⁴ = 3215312029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106064 + ... + 132966.

It is an arithmetic number, because the mean of its divisors is an integer number (137291112).

Almost surely, 2^3215312045 is an apocalyptic number.

It is an amenable number.

3215312045 is a deficient number, since it is larger than the sum of its proper divisors (1178003539).

3215312045 is a wasteful number, since it uses less digits than its factorization.

3215312045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27013.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 3215312045 is about 56703.7216150757. The cubic root of 3215312045 is about 1475.9592794648.

Adding to 3215312045 its reverse (5402135123), we get a palindrome (8617447168).

The spelling of 3215312045 in words is "three billion, two hundred fifteen million, three hundred twelve thousand, forty-five".