142286791 has 8 divisors (see below), whose sum is σ = 143863200. Its totient is φ = 140719392.

The previous prime is 142286783. The next prime is 142286797. The reversal of 142286791 is 197682241.

142286791 = T₉₇₃₈ + T₉₇₃₉ + T₉₇₄₀.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142286791 - 2³ = 142286783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142286797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32361 + ... + 36493.

It is an arithmetic number, because the mean of its divisors is an integer number (17982900).

Almost surely, 2^142286791 is an apocalyptic number.

142286791 is the 9740-th centered triangular number.

142286791 is a deficient number, since it is larger than the sum of its proper divisors (1576409).

142286791 is a wasteful number, since it uses less digits than its factorization.

142286791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4505.

The product of its digits is 48384, while the sum is 40.

The square root of 142286791 is about 11928.4027011164. The cubic root of 142286791 is about 522.0613333979.

The spelling of 142286791 in words is "one hundred forty-two million, two hundred eighty-six thousand, seven hundred ninety-one".