142333849 has 4 divisors (see below), whose sum is σ = 162667264. Its totient is φ = 122000436.

The previous prime is 142333753. The next prime is 142333859. The reversal of 142333849 is 948333241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 948333241 = 47 ⋅20177303.

It is a cyclic number.

It is not a de Polignac number, because 142333849 - 2⁹ = 142333337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142333859) 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 3 ways as a sum of consecutive naturals, for example, 10166697 + ... + 10166710.

It is an arithmetic number, because the mean of its divisors is an integer number (40666816).

Almost surely, 2^142333849 is an apocalyptic number.

It is an amenable number.

142333849 is a deficient number, since it is larger than the sum of its proper divisors (20333415).

142333849 is an equidigital number, since it uses as much as digits as its factorization.

142333849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20333414.

The product of its digits is 62208, while the sum is 37.

The square root of 142333849 is about 11930.3750569712. The cubic root of 142333849 is about 522.1188802117.

The spelling of 142333849 in words is "one hundred forty-two million, three hundred thirty-three thousand, eight hundred forty-nine".