142146117 has 8 divisors (see below), whose sum is σ = 210586880. Its totient is φ = 94764060.

The previous prime is 142146113. The next prime is 142146157. The reversal of 142146117 is 711641241.

142146117 is a `hidden beast` number, since 1 + 42 + 1 + 4 + 611 + 7 = 666.

142146117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142146117 - 2² = 142146113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 5264671 = 142146117 / (1 + 4 + 2 + 1 + 4 + 6 + 1 + 1 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142146113) 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, 2632309 + ... + 2632362.

It is an arithmetic number, because the mean of its divisors is an integer number (26323360).

Almost surely, 2^142146117 is an apocalyptic number.

It is an amenable number.

142146117 is a deficient number, since it is larger than the sum of its proper divisors (68440763).

142146117 is an equidigital number, since it uses as much as digits as its factorization.

142146117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5264680 (or 5264674 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 142146117 is about 11922.5046445787. The cubic root of 142146117 is about 521.8892287084.

Adding to 142146117 its reverse (711641241), we get a palindrome (853787358).

The spelling of 142146117 in words is "one hundred forty-two million, one hundred forty-six thousand, one hundred seventeen".