142427117 has 8 divisors (see below), whose sum is σ = 162960576. Its totient is φ = 121940352.

The previous prime is 142427111. The next prime is 142427141. The reversal of 142427117 is 711724241.

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 142427117 - 2⁴ = 142427101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142427117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142427111) 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, 4868 + ... + 17565.

It is an arithmetic number, because the mean of its divisors is an integer number (20370072).

Almost surely, 2^142427117 is an apocalyptic number.

It is an amenable number.

142427117 is a deficient number, since it is larger than the sum of its proper divisors (20533459).

142427117 is an equidigital number, since it uses as much as digits as its factorization.

142427117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23347.

The product of its digits is 3136, while the sum is 29.

The square root of 142427117 is about 11934.2832629362. The cubic root of 142427117 is about 522.2328993558.

The spelling of 142427117 in words is "one hundred forty-two million, four hundred twenty-seven thousand, one hundred seventeen".