142433109 has 48 divisors (see below), whose sum is σ = 257455744. Its totient is φ = 73872000.

The previous prime is 142433107. The next prime is 142433117. The reversal of 142433109 is 901334241.

It is not a de Polignac number, because 142433109 - 2¹ = 142433107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142433107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48534 + ... + 51384.

Almost surely, 2^142433109 is an apocalyptic number.

It is an amenable number.

142433109 is a deficient number, since it is larger than the sum of its proper divisors (115022635).

142433109 is a wasteful number, since it uses less digits than its factorization.

142433109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938 (or 2935 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 142433109 is about 11934.5343017648. The cubic root of 142433109 is about 522.2402228106.

The spelling of 142433109 in words is "one hundred forty-two million, four hundred thirty-three thousand, one hundred nine".