142999137 has 6 divisors (see below), whose sum is σ = 206554322. Its totient is φ = 95332752.

The previous prime is 142999097. The next prime is 142999147. The reversal of 142999137 is 731999241.

142999137 is a `hidden beast` number, since 1 + 429 + 99 + 137 = 666.

142999137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 134652816 + 8346321 = 11604^2 + 2889^2 .

It is not a de Polignac number, because 142999137 - 2¹⁰ = 142998113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142999092 and 142999101.

It is not an unprimeable number, because it can be changed into a prime (142999147) 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, 7944388 + ... + 7944405.

Almost surely, 2^142999137 is an apocalyptic number.

It is an amenable number.

142999137 is a deficient number, since it is larger than the sum of its proper divisors (63555185).

142999137 is a wasteful number, since it uses less digits than its factorization.

142999137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15888799 (or 15888796 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 142999137 is about 11958.2246592042. The cubic root of 142999137 is about 522.9311012144.

It can be divided in two parts, 14299 and 9137, that added together give a triangular number (23436 = T₂₁₆).

The spelling of 142999137 in words is "one hundred forty-two million, nine hundred ninety-nine thousand, one hundred thirty-seven".