It is a sphenic number, since it is the product of 3 distinct primes.
It is an unprimeable number.
142490 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2142490 is an apocalyptic number.
142490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
142490 is a wasteful number, since it uses less digits than its factorization.
142490 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14256.
The square root of 142490 is about 377.4784762076. The cubic root of 142490 is about 52.2309745068.
The spelling of 142490 in words is "one hundred forty-two thousand, four hundred ninety".