142299997 has 8 divisors (see below), whose sum is σ = 162792000. Its totient is φ = 121848864.

The previous prime is 142299991. The next prime is 142300003. The reversal of 142299997 is 799992241.

It is an interprime number because it is at equal distance from previous prime (142299991) and next prime (142300003).

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

It is a cyclic number.

It is not a de Polignac number, because 142299997 - 2⁷ = 142299869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142299991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2347 + ... + 17032.

It is an arithmetic number, because the mean of its divisors is an integer number (20349000).

Almost surely, 2^142299997 is an apocalyptic number.

It is an amenable number.

142299997 is a deficient number, since it is larger than the sum of its proper divisors (20492003).

142299997 is a wasteful number, since it uses less digits than its factorization.

142299997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20435.

The product of its digits is 734832, while the sum is 52.

The square root of 142299997 is about 11928.9562410129. The cubic root of 142299997 is about 522.0774841796.

The spelling of 142299997 in words is "one hundred forty-two million, two hundred ninety-nine thousand, nine hundred ninety-seven".