142381833 has 16 divisors (see below), whose sum is σ = 207415296. Its totient is φ = 86161040.

The previous prime is 142381829. The next prime is 142381861. The reversal of 142381833 is 338183241.

It is a cyclic number.

It is not a de Polignac number, because 142381833 - 2² = 142381829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 142381794 and 142381803.

It is not an unprimeable number, because it can be changed into a prime (142381823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21616 + ... + 27422.

It is an arithmetic number, because the mean of its divisors is an integer number (12963456).

Almost surely, 2^142381833 is an apocalyptic number.

It is an amenable number.

142381833 is a deficient number, since it is larger than the sum of its proper divisors (65033463).

142381833 is a wasteful number, since it uses less digits than its factorization.

142381833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6564.

The product of its digits is 13824, while the sum is 33.

The square root of 142381833 is about 11932.3858888321. The cubic root of 142381833 is about 522.1775463634.

The spelling of 142381833 in words is "one hundred forty-two million, three hundred eighty-one thousand, eight hundred thirty-three".