141998999 has 2 divisors, whose sum is σ = 141999000. Its totient is φ = 141998998.

The previous prime is 141998981. The next prime is 141999043. The reversal of 141998999 is 999899141.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 141998999 - 2²⁰ = 140950423 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (141995999) 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, 70999499 + 70999500.

It is an arithmetic number, because the mean of its divisors is an integer number (70999500).

Almost surely, 2^141998999 is an apocalyptic number.

141998999 is a deficient number, since it is larger than the sum of its proper divisors (1).

141998999 is an equidigital number, since it uses as much as digits as its factorization.

141998999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1889568, while the sum is 59.

The square root of 141998999 is about 11916.3332867120. Note that the first 3 decimals coincide. The cubic root of 141998999 is about 521.7091187279.

The spelling of 141998999 in words is "one hundred forty-one million, nine hundred ninety-eight thousand, nine hundred ninety-nine".