3215052145 has 4 divisors (see below), whose sum is σ = 3858062580. Its totient is φ = 2572041712.

The previous prime is 3215052107. The next prime is 3215052161. The reversal of 3215052145 is 5412505123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5412505123 = 131 ⋅41316833.

It can be written as a sum of positive squares in 2 ways, for example, as 826677504 + 2388374641 = 28752^2 + 48871^2 .

It is a cyclic number.

It is not a de Polignac number, because 3215052145 - 2¹⁵ = 3215019377 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 321505210 + ... + 321505219.

It is an arithmetic number, because the mean of its divisors is an integer number (964515645).

Almost surely, 2^3215052145 is an apocalyptic number.

It is an amenable number.

3215052145 is a deficient number, since it is larger than the sum of its proper divisors (643010435).

3215052145 is an equidigital number, since it uses as much as digits as its factorization.

3215052145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643010434.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 3215052145 is about 56701.4298320598. The cubic root of 3215052145 is about 1475.9195101622.

Adding to 3215052145 its reverse (5412505123), we get a palindrome (8627557268).

The spelling of 3215052145 in words is "three billion, two hundred fifteen million, fifty-two thousand, one hundred forty-five".