142556623 has 8 divisors (see below), whose sum is σ = 156186576. Its totient is φ = 129038400.

The previous prime is 142556621. The next prime is 142556629. The reversal of 142556623 is 326655241.

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

It is a cyclic number.

It is not a de Polignac number, because 142556623 - 2¹ = 142556621 is a prime.

It is a super-3 number, since 3×142556623³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142556621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25248 + ... + 30373.

It is an arithmetic number, because the mean of its divisors is an integer number (19523322).

Almost surely, 2^142556623 is an apocalyptic number.

142556623 is a deficient number, since it is larger than the sum of its proper divisors (13629953).

142556623 is a wasteful number, since it uses less digits than its factorization.

142556623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55865.

The product of its digits is 43200, while the sum is 34.

The square root of 142556623 is about 11939.7078272460. The cubic root of 142556623 is about 522.3911365576.

The spelling of 142556623 in words is "one hundred forty-two million, five hundred fifty-six thousand, six hundred twenty-three".