142975967 has 4 divisors (see below), whose sum is σ = 151386336. Its totient is φ = 134565600.

The previous prime is 142975961. The next prime is 142975993. The reversal of 142975967 is 769579241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 769579241 = 23 ⋅33459967.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142975967 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 (142975961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4205159 + ... + 4205192.

It is an arithmetic number, because the mean of its divisors is an integer number (37846584).

Almost surely, 2^142975967 is an apocalyptic number.

142975967 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

142975967 is a deficient number, since it is larger than the sum of its proper divisors (8410369).

142975967 is an equidigital number, since it uses as much as digits as its factorization.

142975967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8410368.

The product of its digits is 952560, while the sum is 50.

The square root of 142975967 is about 11957.2558306662. The cubic root of 142975967 is about 522.9028563631.

The spelling of 142975967 in words is "one hundred forty-two million, nine hundred seventy-five thousand, nine hundred sixty-seven".