142067917 has 2 divisors, whose sum is σ = 142067918. Its totient is φ = 142067916.

The previous prime is 142067909. The next prime is 142067927. The reversal of 142067917 is 719760241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73856836 + 68211081 = 8594^2 + 8259^2 .

It is a cyclic number.

It is not a de Polignac number, because 142067917 - 2³ = 142067909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142067927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71033958 + 71033959.

It is an arithmetic number, because the mean of its divisors is an integer number (71033959).

Almost surely, 2^142067917 is an apocalyptic number.

It is an amenable number.

142067917 is a deficient number, since it is larger than the sum of its proper divisors (1).

142067917 is an equidigital number, since it uses as much as digits as its factorization.

142067917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 142067917 is about 11919.2246811611. The cubic root of 142067917 is about 521.7935074302.

The spelling of 142067917 in words is "one hundred forty-two million, sixty-seven thousand, nine hundred seventeen".