142827139 has 24 divisors (see below), whose sum is σ = 178110240. Its totient is φ = 112140288.

The previous prime is 142827133. The next prime is 142827151. The reversal of 142827139 is 931728241.

It is not a de Polignac number, because 142827139 - 2⁵ = 142827107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142827098 and 142827107.

It is not an unprimeable number, because it can be changed into a prime (142827133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185347 + ... + 186115.

It is an arithmetic number, because the mean of its divisors is an integer number (7421260).

Almost surely, 2^142827139 is an apocalyptic number.

142827139 is a deficient number, since it is larger than the sum of its proper divisors (35283101).

142827139 is a wasteful number, since it uses less digits than its factorization.

142827139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959 (or 946 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 142827139 is about 11951.0308760374. The cubic root of 142827139 is about 522.7213582503.

The spelling of 142827139 in words is "one hundred forty-two million, eight hundred twenty-seven thousand, one hundred thirty-nine".