142873308 has 36 divisors (see below), whose sum is σ = 374530520. Its totient is φ = 47624112.

The previous prime is 142873303. The next prime is 142873333. The reversal of 142873308 is 803378241.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142873301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72523 + ... + 74466.

Almost surely, 2^142873308 is an apocalyptic number.

142873308 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

142873308 is an abundant number, since it is smaller than the sum of its proper divisors (231657212).

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

142873308 is a wasteful number, since it uses less digits than its factorization.

142873308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147008 (or 146994 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 142873308 is about 11952.9623106576. The cubic root of 142873308 is about 522.7776755642. Note that the first 3 decimals are identical.

The spelling of 142873308 in words is "one hundred forty-two million, eight hundred seventy-three thousand, three hundred eight".