3187146121 has 2 divisors, whose sum is σ = 3187146122. Its totient is φ = 3187146120.

The previous prime is 3187146119. The next prime is 3187146173. The reversal of 3187146121 is 1216417813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2305056121 + 882090000 = 48011^2 + 29700^2 .

It is a cyclic number.

It is not a de Polignac number, because 3187146121 - 2¹ = 3187146119 is a prime.

Together with 3187146119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3187146101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1593573060 + 1593573061.

It is an arithmetic number, because the mean of its divisors is an integer number (1593573061).

Almost surely, 2^3187146121 is an apocalyptic number.

It is an amenable number.

3187146121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3187146121 is an equidigital number, since it uses as much as digits as its factorization.

3187146121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 34.

The square root of 3187146121 is about 56454.8148610905. The cubic root of 3187146121 is about 1471.6368643915.

The spelling of 3187146121 in words is "three billion, one hundred eighty-seven million, one hundred forty-six thousand, one hundred twenty-one".