141871321 has 2 divisors, whose sum is σ = 141871322. Its totient is φ = 141871320.

The previous prime is 141871241. The next prime is 141871363. The reversal of 141871321 is 123178141.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139499721 + 2371600 = 11811^2 + 1540^2 .

It is a cyclic number.

It is not a de Polignac number, because 141871321 - 2¹³ = 141863129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 141871321.

It is not a weakly prime, because it can be changed into another prime (141871381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70935660 + 70935661.

It is an arithmetic number, because the mean of its divisors is an integer number (70935661).

Almost surely, 2^141871321 is an apocalyptic number.

It is an amenable number.

141871321 is a deficient number, since it is larger than the sum of its proper divisors (1).

141871321 is an equidigital number, since it uses as much as digits as its factorization.

141871321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 28.

The square root of 141871321 is about 11910.9748131713. The cubic root of 141871321 is about 521.5527074114.

The spelling of 141871321 in words is "one hundred forty-one million, eight hundred seventy-one thousand, three hundred twenty-one".