142120254 has 8 divisors (see below), whose sum is σ = 284240520. Its totient is φ = 47373416.

The previous prime is 142120249. The next prime is 142120261. The reversal of 142120254 is 452021241.

142120254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

142120254 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 142120254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11843349 + ... + 11843360.

It is an arithmetic number, because the mean of its divisors is an integer number (35530065).

Almost surely, 2^142120254 is an apocalyptic number.

142120254 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142120254 is a wasteful number, since it uses less digits than its factorization.

142120254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23686714.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 142120254 is about 11921.4199657591. The cubic root of 142120254 is about 521.8575748016.

Adding to 142120254 its reverse (452021241), we get a palindrome (594141495).

The spelling of 142120254 in words is "one hundred forty-two million, one hundred twenty thousand, two hundred fifty-four".