145938 has 16 divisors (see below), whose sum is σ = 314496. Its totient is φ = 44880.

The previous prime is 145933. The next prime is 145949. The reversal of 145938 is 839541.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 4⁸ + 9² + 5⁷ + 3⁷ + 8 .

It is a Curzon number.

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

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 7 ways as a sum of consecutive naturals, for example, 858 + ... + 1013.

It is an arithmetic number, because the mean of its divisors is an integer number (19656).

2¹⁴⁵⁹³⁸ is an apocalyptic number.

145938 is an abundant number, since it is smaller than the sum of its proper divisors (168558).

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

145938 is a wasteful number, since it uses less digits than its factorization.

145938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889.

The product of its digits is 4320, while the sum is 30.

The square root of 145938 is about 382.0183241678. The cubic root of 145938 is about 52.6489195844.

The spelling of 145938 in words is "one hundred forty-five thousand, nine hundred thirty-eight".