142117192 has 32 divisors (see below), whose sum is σ = 304920000. Its totient is φ = 60830784.

The previous prime is 142117187. The next prime is 142117211. The reversal of 142117192 is 291711241.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 142117192.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83098 + ... + 84790.

It is an arithmetic number, because the mean of its divisors is an integer number (9528750).

Almost surely, 2^142117192 is an apocalyptic number.

It is an amenable number.

142117192 is an abundant number, since it is smaller than the sum of its proper divisors (162802808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142117192 is a wasteful number, since it uses less digits than its factorization.

142117192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205 (or 3201 counting only the distinct ones).

The product of its digits is 1008, while the sum is 28.

The square root of 142117192 is about 11921.2915407686. The cubic root of 142117192 is about 521.8538269441.

The spelling of 142117192 in words is "one hundred forty-two million, one hundred seventeen thousand, one hundred ninety-two".