3213191349 has 10 divisors (see below), whose sum is σ = 4799952630. Its totient is φ = 2142127512.

The previous prime is 3213191299. The next prime is 3213191461. The reversal of 3213191349 is 9431913123.

3213191349 is a `hidden beast` number, since 321 + 319 + 13 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3212849124 + 342225 = 56682^2 + 585^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3213191349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213191249) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19834434 + ... + 19834595.

It is an arithmetic number, because the mean of its divisors is an integer number (479995263).

Almost surely, 2^3213191349 is an apocalyptic number.

It is an amenable number.

3213191349 is a deficient number, since it is larger than the sum of its proper divisors (1586761281).

3213191349 is an equidigital number, since it uses as much as digits as its factorization.

3213191349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39669041 (or 39669032 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 3213191349 is about 56685.0187351120. The cubic root of 3213191349 is about 1475.6347127971.

The spelling of 3213191349 in words is "three billion, two hundred thirteen million, one hundred ninety-one thousand, three hundred forty-nine".