142034021 has 8 divisors (see below), whose sum is σ = 144362880. Its totient is φ = 139718592.

The previous prime is 142034003. The next prime is 142034029. The reversal of 142034021 is 120430241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142034021 - 2²⁶ = 74925157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142034029) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 19181 + ... + 25533.

It is an arithmetic number, because the mean of its divisors is an integer number (18045360).

Almost surely, 2^142034021 is an apocalyptic number.

It is an amenable number.

142034021 is a deficient number, since it is larger than the sum of its proper divisors (2328859).

142034021 is an equidigital number, since it uses as much as digits as its factorization.

142034021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6715.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 142034021 is about 11917.8026917717. The cubic root of 142034021 is about 521.7520058726.

Adding to 142034021 its reverse (120430241), we get a palindrome (262464262).

The spelling of 142034021 in words is "one hundred forty-two million, thirty-four thousand, twenty-one".