142278607 has 2 divisors, whose sum is σ = 142278608. Its totient is φ = 142278606.

The previous prime is 142278601. The next prime is 142278637. The reversal of 142278607 is 706872241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142278607 - 2²³ = 133889999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142278601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71139303 + 71139304.

It is an arithmetic number, because the mean of its divisors is an integer number (71139304).

Almost surely, 2^142278607 is an apocalyptic number.

142278607 is a deficient number, since it is larger than the sum of its proper divisors (1).

142278607 is an equidigital number, since it uses as much as digits as its factorization.

142278607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 142278607 is about 11928.0596494149. The cubic root of 142278607 is about 522.0513239613.

The spelling of 142278607 in words is "one hundred forty-two million, two hundred seventy-eight thousand, six hundred seven".