142810386 has 16 divisors (see below), whose sum is σ = 286434144. Its totient is φ = 47467904.

The previous prime is 142810373. The next prime is 142810399. The reversal of 142810386 is 683018241.

It is an interprime number because it is at equal distance from previous prime (142810373) and next prime (142810399).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31596 + ... + 35831.

It is an arithmetic number, because the mean of its divisors is an integer number (17902134).

Almost surely, 2^142810386 is an apocalyptic number.

142810386 is an abundant number, since it is smaller than the sum of its proper divisors (143623758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142810386 is a wasteful number, since it uses less digits than its factorization.

142810386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67785.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 142810386 is about 11950.3299536038. The cubic root of 142810386 is about 522.7009198066.

The spelling of 142810386 in words is "one hundred forty-two million, eight hundred ten thousand, three hundred eighty-six".