142697823 has 8 divisors (see below), whose sum is σ = 191166336. Its totient is φ = 94680600.

The previous prime is 142697761. The next prime is 142697827. The reversal of 142697823 is 328796241.

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

It is not a de Polignac number, because 142697823 - 2⁶ = 142697759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142697827) 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, 112083 + ... + 113348.

It is an arithmetic number, because the mean of its divisors is an integer number (23895792).

Almost surely, 2^142697823 is an apocalyptic number.

142697823 is a deficient number, since it is larger than the sum of its proper divisors (48468513).

142697823 is a wasteful number, since it uses less digits than its factorization.

142697823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225645.

The product of its digits is 145152, while the sum is 42.

The square root of 142697823 is about 11945.6194062928. The cubic root of 142697823 is about 522.5635529329.

The spelling of 142697823 in words is "one hundred forty-two million, six hundred ninety-seven thousand, eight hundred twenty-three".