142021052 has 24 divisors (see below), whose sum is σ = 251682816. Its totient is φ = 70117488.

The previous prime is 142021031. The next prime is 142021057. The reversal of 142021052 is 250120241.

142021052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142021052² = 40339958422373408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142021052.

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, 133073 + ... + 134135.

It is an arithmetic number, because the mean of its divisors is an integer number (10486784).

Almost surely, 2^142021052 is an apocalyptic number.

It is an amenable number.

142021052 is a deficient number, since it is larger than the sum of its proper divisors (109661764).

142021052 is a wasteful number, since it uses less digits than its factorization.

142021052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457 (or 1455 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 142021052 is about 11917.2585773742. The cubic root of 142021052 is about 521.7361251522.

Adding to 142021052 its reverse (250120241), we get a palindrome (392141293).

The spelling of 142021052 in words is "one hundred forty-two million, twenty-one thousand, fifty-two".