3142201721 has 2 divisors, whose sum is σ = 3142201722. Its totient is φ = 3142201720.

The previous prime is 3142201717. The next prime is 3142201753. The reversal of 3142201721 is 1271022413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2317363321 + 824838400 = 48139^2 + 28720^2 .

It is a cyclic number.

It is not a de Polignac number, because 3142201721 - 2² = 3142201717 is a prime.

It is not a weakly prime, because it can be changed into another prime (3142204721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1571100860 + 1571100861.

It is an arithmetic number, because the mean of its divisors is an integer number (1571100861).

Almost surely, 2^3142201721 is an apocalyptic number.

It is an amenable number.

3142201721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3142201721 is an equidigital number, since it uses as much as digits as its factorization.

3142201721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 3142201721 is about 56055.3451599399. The cubic root of 3142201721 is about 1464.6865293187.

The spelling of 3142201721 in words is "three billion, one hundred forty-two million, two hundred one thousand, seven hundred twenty-one".