142194180 has 24 divisors (see below), whose sum is σ = 398143872. Its totient is φ = 37918432.

The previous prime is 142194139. The next prime is 142194181. The reversal of 142194180 is 81491241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (142194181) 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, 1184892 + ... + 1185011.

It is an arithmetic number, because the mean of its divisors is an integer number (16589328).

Almost surely, 2^142194180 is an apocalyptic number.

142194180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142194180 is an abundant number, since it is smaller than the sum of its proper divisors (255949692).

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

142194180 is a wasteful number, since it uses less digits than its factorization.

142194180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369915 (or 2369913 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 142194180 is about 11924.5201161305. The cubic root of 142194180 is about 521.9480431545.

The spelling of 142194180 in words is "one hundred forty-two million, one hundred ninety-four thousand, one hundred eighty".