142099999 has 2 divisors, whose sum is σ = 142100000. Its totient is φ = 142099998.

The previous prime is 142099987. The next prime is 142100011. The reversal of 142099999 is 999990241.

It is a balanced prime because it is at equal distance from previous prime (142099987) and next prime (142100011).

It is a cyclic number.

It is not a de Polignac number, because 142099999 - 2⁹ = 142099487 is a prime.

142099999 is a modest number, since divided by 99999 gives 1420 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142094999) 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, 71049999 + 71050000.

It is an arithmetic number, because the mean of its divisors is an integer number (71050000).

Almost surely, 2^142099999 is an apocalyptic number.

142099999 is a deficient number, since it is larger than the sum of its proper divisors (1).

142099999 is an equidigital number, since it uses as much as digits as its factorization.

142099999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 472392, while the sum is 52.

The square root of 142099999 is about 11920.5704142042. The cubic root of 142099999 is about 521.8327818836.

The spelling of 142099999 in words is "one hundred forty-two million, ninety-nine thousand, nine hundred ninety-nine".