142004501 has 8 divisors (see below), whose sum is σ = 143783640. Its totient is φ = 140234752.

The previous prime is 142004497. The next prime is 142004509. The reversal of 142004501 is 105400241.

It can be written as a sum of positive squares in 4 ways, for example, as 46922500 + 95082001 = 6850^2 + 9751^2 .

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 142004501 - 2² = 142004497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142004501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142004509) 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, 30965 + ... + 35253.

It is an arithmetic number, because the mean of its divisors is an integer number (17972955).

Almost surely, 2^142004501 is an apocalyptic number.

It is an amenable number.

142004501 is a deficient number, since it is larger than the sum of its proper divisors (1779139).

142004501 is a wasteful number, since it uses less digits than its factorization.

142004501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4695.

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

The square root of 142004501 is about 11916.5641440811. The cubic root of 142004501 is about 521.7158568188.

Adding to 142004501 its reverse (105400241), we get a palindrome (247404742).

The spelling of 142004501 in words is "one hundred forty-two million, four thousand, five hundred one".