142759 has 2 divisors, whose sum is σ = 142760. Its totient is φ = 142758.

The previous prime is 142757. The next prime is 142771. The reversal of 142759 is 957241.

142759 = T₃₀₇ + T₃₀₈ + T₃₀₉.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (957241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142759 - 2¹ = 142757 is a prime.

Together with 142757, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71379 + 71380.

It is an arithmetic number, because the mean of its divisors is an integer number (71380).

2¹⁴²⁷⁵⁹ is an apocalyptic number.

142759 is the 309-th centered triangular number.

142759 is a deficient number, since it is larger than the sum of its proper divisors (1).

142759 is an equidigital number, since it uses as much as digits as its factorization.

142759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 28.

The square root of 142759 is about 377.8346199066. The cubic root of 142759 is about 52.2638219578.

The spelling of 142759 in words is "one hundred forty-two thousand, seven hundred fifty-nine".