145930 has 8 divisors (see below), whose sum is σ = 262692. Its totient is φ = 58368.

The previous prime is 145903. The next prime is 145931. The reversal of 145930 is 39541.

It can be written as a sum of positive squares in 2 ways, for example, as 131769 + 14161 = 363^2 + 119^2 .

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

It is a d-powerful number, because it can be written as 1 + 4⁸ + 9² + 5⁷ + 3⁷ + 0 .

It is not an unprimeable number, because it can be changed into a prime (145931) by changing a digit.

145930 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7287 + ... + 7306.

2¹⁴⁵⁹³⁰ is an apocalyptic number.

145930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145930 is a deficient number, since it is larger than the sum of its proper divisors (116762).

145930 is a wasteful number, since it uses less digits than its factorization.

145930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14600.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 145930 is about 382.0078533224. The cubic root of 145930 is about 52.6479575341.

The spelling of 145930 in words is "one hundred forty-five thousand, nine hundred thirty".