3213214145 has 4 divisors (see below), whose sum is σ = 3855856980. Its totient is φ = 2570571312.

The previous prime is 3213214141. The next prime is 3213214189. The reversal of 3213214145 is 5414123123.

It is a happy number.

3213214145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 963419521 + 2249794624 = 31039^2 + 47432^2 .

It is a cyclic number.

It is not a de Polignac number, because 3213214145 - 2² = 3213214141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3213214141) 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, 321321410 + ... + 321321419.

It is an arithmetic number, because the mean of its divisors is an integer number (963964245).

Almost surely, 2^3213214145 is an apocalyptic number.

It is an amenable number.

3213214145 is a deficient number, since it is larger than the sum of its proper divisors (642642835).

3213214145 is an equidigital number, since it uses as much as digits as its factorization.

3213214145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642642834.

The product of its digits is 2880, while the sum is 26.

The square root of 3213214145 is about 56685.2198108114. The cubic root of 3213214145 is about 1475.6382024211.

Adding to 3213214145 its reverse (5414123123), we get a palindrome (8627337268).

The spelling of 3213214145 in words is "three billion, two hundred thirteen million, two hundred fourteen thousand, one hundred forty-five".