142344197 has 4 divisors (see below), whose sum is σ = 143943660. Its totient is φ = 140744736.

The previous prime is 142344193. The next prime is 142344199. The reversal of 142344197 is 791443241.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20484676 + 121859521 = 4526^2 + 11039^2 .

It is a cyclic number.

It is not a de Polignac number, because 142344197 - 2² = 142344193 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 (142344193) 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, 799598 + ... + 799775.

It is an arithmetic number, because the mean of its divisors is an integer number (35985915).

Almost surely, 2^142344197 is an apocalyptic number.

It is an amenable number.

142344197 is a deficient number, since it is larger than the sum of its proper divisors (1599463).

142344197 is an equidigital number, since it uses as much as digits as its factorization.

142344197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599462.

The product of its digits is 24192, while the sum is 35.

The square root of 142344197 is about 11930.8087320181. The cubic root of 142344197 is about 522.1315329884.

The spelling of 142344197 in words is "one hundred forty-two million, three hundred forty-four thousand, one hundred ninety-seven".