142302621 has 8 divisors (see below), whose sum is σ = 192138880. Its totient is φ = 93667392.

The previous prime is 142302613. The next prime is 142302683. The reversal of 142302621 is 126203241.

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

It is not a de Polignac number, because 142302621 - 2³ = 142302613 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 (142307621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 299980 + ... + 300453.

It is an arithmetic number, because the mean of its divisors is an integer number (24017360).

Almost surely, 2^142302621 is an apocalyptic number.

It is an amenable number.

142302621 is a deficient number, since it is larger than the sum of its proper divisors (49836259).

142302621 is an equidigital number, since it uses as much as digits as its factorization.

142302621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600515.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 142302621 is about 11929.0662249817. The cubic root of 142302621 is about 522.0806931815.

Adding to 142302621 its reverse (126203241), we get a palindrome (268505862).

The spelling of 142302621 in words is "one hundred forty-two million, three hundred two thousand, six hundred twenty-one".