141821399 has 2 divisors, whose sum is σ = 141821400. Its totient is φ = 141821398.

The previous prime is 141821357. The next prime is 141821417. The reversal of 141821399 is 993128141.

It is a strong prime.

It is an emirp because it is prime and its reverse (993128141) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 141821399 - 2¹² = 141817303 is a prime.

It is a super-2 number, since 2×141821399² = 40226618428634402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141821299) 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, 70910699 + 70910700.

It is an arithmetic number, because the mean of its divisors is an integer number (70910700).

Almost surely, 2^141821399 is an apocalyptic number.

141821399 is a deficient number, since it is larger than the sum of its proper divisors (1).

141821399 is an equidigital number, since it uses as much as digits as its factorization.

141821399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 38.

The square root of 141821399 is about 11908.8789984616. The cubic root of 141821399 is about 521.4915251873.

The spelling of 141821399 in words is "one hundred forty-one million, eight hundred twenty-one thousand, three hundred ninety-nine".