142699959 has 6 divisors (see below), whose sum is σ = 206122176. Its totient is φ = 95133300.

The previous prime is 142699957. The next prime is 142699979. The reversal of 142699959 is 959996241.

142699959 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142699959 - 2¹ = 142699957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142699957) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7927767 + ... + 7927784.

It is an arithmetic number, because the mean of its divisors is an integer number (34353696).

Almost surely, 2^142699959 is an apocalyptic number.

142699959 is a deficient number, since it is larger than the sum of its proper divisors (63422217).

142699959 is a wasteful number, since it uses less digits than its factorization.

142699959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15855557 (or 15855554 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 54.

The square root of 142699959 is about 11945.7088111171. The cubic root of 142699959 is about 522.5661602845.

The spelling of 142699959 in words is "one hundred forty-two million, six hundred ninety-nine thousand, nine hundred fifty-nine".