142056254 has 8 divisors (see below), whose sum is σ = 213509520. Its totient is φ = 70886416.

The previous prime is 142056241. The next prime is 142056289. The reversal of 142056254 is 452650241.

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

It is a congruent number.

It is an unprimeable number.

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, 69599 + ... + 71610.

It is an arithmetic number, because the mean of its divisors is an integer number (26688690).

Almost surely, 2^142056254 is an apocalyptic number.

142056254 is a deficient number, since it is larger than the sum of its proper divisors (71453266).

142056254 is a wasteful number, since it uses less digits than its factorization.

142056254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141714.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 142056254 is about 11918.7354194982. The cubic root of 142056254 is about 521.7792282405.

The spelling of 142056254 in words is "one hundred forty-two million, fifty-six thousand, two hundred fifty-four".