142180000 has 60 divisors (see below), whose sum is σ = 349833330. Its totient is φ = 56864000.

The previous prime is 142179991. The next prime is 142180037. The reversal of 142180000 is 81241.

It is a happy number.

142180000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 1140624 + 141039376 = 1068^2 + 11876^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a zygodrome in base 7.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16446 + ... + 23554.

Almost surely, 2^142180000 is an apocalyptic number.

142180000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142180000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174916665).

142180000 is an abundant number, since it is smaller than the sum of its proper divisors (207653330).

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

142180000 is an frugal number, since it uses more digits than its factorization.

142180000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7139 (or 7116 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 142180000 is about 11923.9255281136. The cubic root of 142180000 is about 521.9306925398.

The spelling of 142180000 in words is "one hundred forty-two million, one hundred eighty thousand".