142389707 has 2 divisors, whose sum is σ = 142389708. Its totient is φ = 142389706.

The previous prime is 142389697. The next prime is 142389713. The reversal of 142389707 is 707983241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142389707 - 2⁴ = 142389691 is a prime.

It is not a weakly prime, because it can be changed into another prime (142389787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71194853 + 71194854.

It is an arithmetic number, because the mean of its divisors is an integer number (71194854).

Almost surely, 2^142389707 is an apocalyptic number.

142389707 is a deficient number, since it is larger than the sum of its proper divisors (1).

142389707 is an equidigital number, since it uses as much as digits as its factorization.

142389707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 142389707 is about 11932.7158266675. The cubic root of 142389707 is about 522.1871720067.

The spelling of 142389707 in words is "one hundred forty-two million, three hundred eighty-nine thousand, seven hundred seven".