142224654 has 96 divisors (see below), whose sum is σ = 345316608. Its totient is φ = 38688000.

The previous prime is 142224647. The next prime is 142224697. The reversal of 142224654 is 456422241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 457159 + ... + 457469.

It is an arithmetic number, because the mean of its divisors is an integer number (3597048).

Almost surely, 2^142224654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142224654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172658304).

142224654 is an abundant number, since it is smaller than the sum of its proper divisors (203091954).

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

142224654 is a wasteful number, since it uses less digits than its factorization.

142224654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 381 counting only the distinct ones).

The product of its digits is 15360, while the sum is 30.

The square root of 142224654 is about 11925.7978349459. The cubic root of 142224654 is about 521.9853271664.

Adding to 142224654 its reverse (456422241), we get a palindrome (598646895).

The spelling of 142224654 in words is "one hundred forty-two million, two hundred twenty-four thousand, six hundred fifty-four".