142021054 has 16 divisors (see below), whose sum is σ = 247457376. Its totient is φ = 59868000.

The previous prime is 142021031. The next prime is 142021057. The reversal of 142021054 is 450120241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142021057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82297 + ... + 84004.

It is an arithmetic number, because the mean of its divisors is an integer number (15466086).

Almost surely, 2^142021054 is an apocalyptic number.

142021054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

142021054 is a deficient number, since it is larger than the sum of its proper divisors (105436322).

142021054 is a wasteful number, since it uses less digits than its factorization.

142021054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166371.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 142021054 is about 11917.2586612862. The cubic root of 142021054 is about 521.7361276013.

Adding to 142021054 its reverse (450120241), we get a palindrome (592141295).

The spelling of 142021054 in words is "one hundred forty-two million, twenty-one thousand, fifty-four".