3655331213 has 2 divisors, whose sum is σ = 3655331214. Its totient is φ = 3655331212.

The previous prime is 3655331201. The next prime is 3655331291. The reversal of 3655331213 is 3121335563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3429039364 + 226291849 = 58558^2 + 15043^2 .

It is a cyclic number.

It is not a de Polignac number, because 3655331213 - 2⁶ = 3655331149 is a prime.

It is a super-2 number, since 2×3655331213² = 26722892553464102738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3655331213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3655339213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1827665606 + 1827665607.

It is an arithmetic number, because the mean of its divisors is an integer number (1827665607).

Almost surely, 2^3655331213 is an apocalyptic number.

It is an amenable number.

3655331213 is a deficient number, since it is larger than the sum of its proper divisors (1).

3655331213 is an equidigital number, since it uses as much as digits as its factorization.

3655331213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24300, while the sum is 32.

The square root of 3655331213 is about 60459.3352014393. The cubic root of 3655331213 is about 1540.4309825678.

Adding to 3655331213 its reverse (3121335563), we get a palindrome (6776666776).

The spelling of 3655331213 in words is "three billion, six hundred fifty-five million, three hundred thirty-one thousand, two hundred thirteen".