142833890 has 16 divisors (see below), whose sum is σ = 258741432. Its totient is φ = 56769024.

The previous prime is 142833869. The next prime is 142833913. The reversal of 142833890 is 98338241.

It can be written as a sum of positive squares in 4 ways, for example, as 64529089 + 78304801 = 8033^2 + 8849^2 .

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, 43919 + ... + 47058.

Almost surely, 2^142833890 is an apocalyptic number.

142833890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142833890 is a deficient number, since it is larger than the sum of its proper divisors (115907542).

142833890 is a wasteful number, since it uses less digits than its factorization.

142833890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91141.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 142833890 is about 11951.3133169539. The cubic root of 142833890 is about 522.7295939314.

The spelling of 142833890 in words is "one hundred forty-two million, eight hundred thirty-three thousand, eight hundred ninety".