142268397 has 8 divisors (see below), whose sum is σ = 189805056. Its totient is φ = 94788672.

The previous prime is 142268387. The next prime is 142268417. The reversal of 142268397 is 793862241.

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

It is not a de Polignac number, because 142268397 - 2⁸ = 142268141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142268327) 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, 8013 + ... + 18674.

It is an arithmetic number, because the mean of its divisors is an integer number (23725632).

Almost surely, 2^142268397 is an apocalyptic number.

It is an amenable number.

142268397 is a deficient number, since it is larger than the sum of its proper divisors (47536659).

142268397 is a wasteful number, since it uses less digits than its factorization.

142268397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28467.

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

The square root of 142268397 is about 11927.6316593027. The cubic root of 142268397 is about 522.0388360883.

The spelling of 142268397 in words is "one hundred forty-two million, two hundred sixty-eight thousand, three hundred ninety-seven".