3156642361 has 2 divisors, whose sum is σ = 3156642362. Its totient is φ = 3156642360.

The previous prime is 3156642347. The next prime is 3156642371. The reversal of 3156642361 is 1632466513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2775182400 + 381459961 = 52680^2 + 19531^2 .

It is a cyclic number.

It is not a de Polignac number, because 3156642361 - 2⁵ = 3156642329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3156642361.

It is not a weakly prime, because it can be changed into another prime (3156642371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1578321180 + 1578321181.

It is an arithmetic number, because the mean of its divisors is an integer number (1578321181).

Almost surely, 2^3156642361 is an apocalyptic number.

It is an amenable number.

3156642361 is a deficient number, since it is larger than the sum of its proper divisors (1).

3156642361 is an equidigital number, since it uses as much as digits as its factorization.

3156642361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 37.

The square root of 3156642361 is about 56184.0044941619. The cubic root of 3156642361 is about 1466.9268578044.

The spelling of 3156642361 in words is "three billion, one hundred fifty-six million, six hundred forty-two thousand, three hundred sixty-one".