142194241 has 8 divisors (see below), whose sum is σ = 167750144. Its totient is φ = 117948960.

The previous prime is 142194229. The next prime is 142194251. The reversal of 142194241 is 142491241.

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 142194241 - 2¹⁹ = 141669953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142194251) 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, 327420 + ... + 327853.

It is an arithmetic number, because the mean of its divisors is an integer number (20968768).

Almost surely, 2^142194241 is an apocalyptic number.

It is an amenable number.

142194241 is a deficient number, since it is larger than the sum of its proper divisors (25555903).

142194241 is an equidigital number, since it uses as much as digits as its factorization.

142194241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655311.

The product of its digits is 2304, while the sum is 28.

The square root of 142194241 is about 11924.5226738851. The cubic root of 142194241 is about 521.9481177914.

The spelling of 142194241 in words is "one hundred forty-two million, one hundred ninety-four thousand, two hundred forty-one".