142214539 has 2 divisors, whose sum is σ = 142214540. Its totient is φ = 142214538.

The previous prime is 142214509. The next prime is 142214551. The reversal of 142214539 is 935412241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142214539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142214539.

It is not a weakly prime, because it can be changed into another prime (142214509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71107269 + 71107270.

It is an arithmetic number, because the mean of its divisors is an integer number (71107270).

Almost surely, 2^142214539 is an apocalyptic number.

142214539 is a deficient number, since it is larger than the sum of its proper divisors (1).

142214539 is an equidigital number, since it uses as much as digits as its factorization.

142214539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 31.

The square root of 142214539 is about 11925.3737467637. The cubic root of 142214539 is about 521.9729523622.

The spelling of 142214539 in words is "one hundred forty-two million, two hundred fourteen thousand, five hundred thirty-nine".