142291027 has 2 divisors, whose sum is σ = 142291028. Its totient is φ = 142291026.

The previous prime is 142291007. The next prime is 142291031. The reversal of 142291027 is 720192241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142291027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142290986 and 142291004.

It is not a weakly prime, because it can be changed into another prime (142291007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71145513 + 71145514.

It is an arithmetic number, because the mean of its divisors is an integer number (71145514).

Almost surely, 2^142291027 is an apocalyptic number.

142291027 is a deficient number, since it is larger than the sum of its proper divisors (1).

142291027 is an equidigital number, since it uses as much as digits as its factorization.

142291027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 142291027 is about 11928.5802591926. The cubic root of 142291027 is about 522.0665140847.

The spelling of 142291027 in words is "one hundred forty-two million, two hundred ninety-one thousand, twenty-seven".