142021053 has 16 divisors (see below), whose sum is σ = 211161600. Its totient is φ = 94338720.

The previous prime is 142021031. The next prime is 142021057. The reversal of 142021053 is 350120241.

It is not a de Polignac number, because 142021053 - 2⁸ = 142020797 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 1773 + ... + 16946.

It is an arithmetic number, because the mean of its divisors is an integer number (13197600).

Almost surely, 2^142021053 is an apocalyptic number.

It is an amenable number.

142021053 is a deficient number, since it is larger than the sum of its proper divisors (69140547).

142021053 is a wasteful number, since it uses less digits than its factorization.

142021053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19009 (or 19003 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 142021053 is about 11917.2586193302. The cubic root of 142021053 is about 521.7361263767.

Adding to 142021053 its reverse (350120241), we get a palindrome (492141294).

The spelling of 142021053 in words is "one hundred forty-two million, twenty-one thousand, fifty-three".