142120907 has 2 divisors, whose sum is σ = 142120908. Its totient is φ = 142120906.

The previous prime is 142120871. The next prime is 142120919. The reversal of 142120907 is 709021241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142120907 - 2¹⁰ = 142119883 is a prime.

It is not a weakly prime, because it can be changed into another prime (142120987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71060453 + 71060454.

It is an arithmetic number, because the mean of its divisors is an integer number (71060454).

Almost surely, 2^142120907 is an apocalyptic number.

142120907 is a deficient number, since it is larger than the sum of its proper divisors (1).

142120907 is an equidigital number, since it uses as much as digits as its factorization.

142120907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 142120907 is about 11921.4473534047. The cubic root of 142120907 is about 521.8583740601.

The spelling of 142120907 in words is "one hundred forty-two million, one hundred twenty thousand, nine hundred seven".