142930 has 8 divisors (see below), whose sum is σ = 257292. Its totient is φ = 57168.

The previous prime is 142907. The next prime is 142939. The reversal of 142930 is 39241.

It can be written as a sum of positive squares in 2 ways, for example, as 117649 + 25281 = 343^2 + 159^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 142898 and 142907.

It is not an unprimeable number, because it can be changed into a prime (142939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7137 + ... + 7156.

2¹⁴²⁹³⁰ is an apocalyptic number.

142930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142930 is a deficient number, since it is larger than the sum of its proper divisors (114362).

142930 is a wasteful number, since it uses less digits than its factorization.

142930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14300.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 142930 is about 378.0608416644. The cubic root of 142930 is about 52.2846812324.

The spelling of 142930 in words is "one hundred forty-two thousand, nine hundred thirty".