142156307 has 16 divisors (see below), whose sum is σ = 153280512. Its totient is φ = 131503680.

The previous prime is 142156303. The next prime is 142156327. The reversal of 142156307 is 703651241.

It is a cyclic number.

It is not a de Polignac number, because 142156307 - 2² = 142156303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142156307.

It is not an unprimeable number, because it can be changed into a prime (142156303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119168 + ... + 120354.

It is an arithmetic number, because the mean of its divisors is an integer number (9580032).

Almost surely, 2^142156307 is an apocalyptic number.

142156307 is a deficient number, since it is larger than the sum of its proper divisors (11124205).

142156307 is a wasteful number, since it uses less digits than its factorization.

142156307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 142156307 is about 11922.9319800123. The cubic root of 142156307 is about 521.9016992663.

The spelling of 142156307 in words is "one hundred forty-two million, one hundred fifty-six thousand, three hundred seven".