142223554 has 16 divisors (see below), whose sum is σ = 235037376. Its totient is φ = 64006000.

The previous prime is 142223507. The next prime is 142223561. The reversal of 142223554 is 455322241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29782 + ... + 34225.

It is an arithmetic number, because the mean of its divisors is an integer number (14689836).

Almost surely, 2^142223554 is an apocalyptic number.

142223554 is a deficient number, since it is larger than the sum of its proper divisors (92813822).

142223554 is a wasteful number, since it uses less digits than its factorization.

142223554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64121.

The product of its digits is 9600, while the sum is 28.

The square root of 142223554 is about 11925.7517163490. The cubic root of 142223554 is about 521.9839814426.

Adding to 142223554 its reverse (455322241), we get a palindrome (597545795).

It can be divided in two parts, 1422 and 23554, that added together give a triangular number (24976 = T₂₂₃).

The spelling of 142223554 in words is "one hundred forty-two million, two hundred twenty-three thousand, five hundred fifty-four".