142198177 has 8 divisors (see below), whose sum is σ = 155338272. Its totient is φ = 129093600.

The previous prime is 142198169. The next prime is 142198181. The reversal of 142198177 is 771891241.

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 142198177 - 2³ = 142198169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142198157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123 + ... + 16864.

It is an arithmetic number, because the mean of its divisors is an integer number (19417284).

Almost surely, 2^142198177 is an apocalyptic number.

It is an amenable number.

142198177 is a deficient number, since it is larger than the sum of its proper divisors (13140095).

142198177 is a wasteful number, since it uses less digits than its factorization.

142198177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17759.

The product of its digits is 28224, while the sum is 40.

The square root of 142198177 is about 11924.6877107956. The cubic root of 142198177 is about 521.9529336659.

The spelling of 142198177 in words is "one hundred forty-two million, one hundred ninety-eight thousand, one hundred seventy-seven".