142550439 has 8 divisors (see below), whose sum is σ = 190898160. Its totient is φ = 94618176.

The previous prime is 142550437. The next prime is 142550459. The reversal of 142550439 is 934055241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142550439 - 2¹ = 142550437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142550437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103062 + ... + 104435.

It is an arithmetic number, because the mean of its divisors is an integer number (23862270).

Almost surely, 2^142550439 is an apocalyptic number.

142550439 is a deficient number, since it is larger than the sum of its proper divisors (48347721).

142550439 is a wasteful number, since it uses less digits than its factorization.

142550439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207729.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 142550439 is about 11939.4488566265. The cubic root of 142550439 is about 522.3835828024.

The spelling of 142550439 in words is "one hundred forty-two million, five hundred fifty thousand, four hundred thirty-nine".