142301623 has 4 divisors (see below), whose sum is σ = 142330608. Its totient is φ = 142272640.

The previous prime is 142301597. The next prime is 142301633. The reversal of 142301623 is 326103241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142301623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142301594 and 142301603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142301633) 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 3 ways as a sum of consecutive naturals, for example, 5098 + ... + 17623.

It is an arithmetic number, because the mean of its divisors is an integer number (35582652).

Almost surely, 2^142301623 is an apocalyptic number.

142301623 is a deficient number, since it is larger than the sum of its proper divisors (28985).

142301623 is an equidigital number, since it uses as much as digits as its factorization.

142301623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28984.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 142301623 is about 11929.0243943082. The cubic root of 142301623 is about 522.0794726893.

Adding to 142301623 its reverse (326103241), we get a palindrome (468404864).

The spelling of 142301623 in words is "one hundred forty-two million, three hundred one thousand, six hundred twenty-three".