142066091 has 2 divisors, whose sum is σ = 142066092. Its totient is φ = 142066090.

The previous prime is 142066079. The next prime is 142066117. The reversal of 142066091 is 190660241.

It is a weak prime.

It is an emirp because it is prime and its reverse (190660241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142066091 is a prime.

It is not a weakly prime, because it can be changed into another prime (142066291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71033045 + 71033046.

It is an arithmetic number, because the mean of its divisors is an integer number (71033046).

Almost surely, 2^142066091 is an apocalyptic number.

142066091 is a deficient number, since it is larger than the sum of its proper divisors (1).

142066091 is an equidigital number, since it uses as much as digits as its factorization.

142066091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 142066091 is about 11919.1480819730. The cubic root of 142066091 is about 521.7912718820.

The spelling of 142066091 in words is "one hundred forty-two million, sixty-six thousand, ninety-one".