142958623 has 4 divisors (see below), whose sum is σ = 144270280. Its totient is φ = 141646968.

The previous prime is 142958609. The next prime is 142958659. The reversal of 142958623 is 326859241.

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

It is a cyclic number.

It is not a de Polignac number, because 142958623 - 2¹⁷ = 142827551 is a prime.

It is a super-2 number, since 2×142958623² = 40874335780112258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142958323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 655665 + ... + 655882.

It is an arithmetic number, because the mean of its divisors is an integer number (36067570).

Almost surely, 2^142958623 is an apocalyptic number.

142958623 is a deficient number, since it is larger than the sum of its proper divisors (1311657).

142958623 is a wasteful number, since it uses less digits than its factorization.

142958623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311656.

The product of its digits is 103680, while the sum is 40.

The square root of 142958623 is about 11956.5305586529. The cubic root of 142958623 is about 522.8817115650.

The spelling of 142958623 in words is "one hundred forty-two million, nine hundred fifty-eight thousand, six hundred twenty-three".