145944 has 24 divisors (see below), whose sum is σ = 395460. Its totient is φ = 48624.

The previous prime is 145933. The next prime is 145949. The reversal of 145944 is 449541.

145944 = T₁₈₇ + T₁₈₈ + ... + T₁₉₄.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×145944² = 42599302272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145949) by changing a digit.

145944 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 5 ways as a sum of consecutive naturals, for example, 942 + ... + 1085.

2¹⁴⁵⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

145944 is an abundant number, since it is smaller than the sum of its proper divisors (249516).

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

145944 is a wasteful number, since it uses less digits than its factorization.

145944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2039 (or 2032 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 145944 is about 382.0261771136. The cubic root of 145944 is about 52.6496410990.

It can be divided in two parts, 145 and 944, that added together give a square (1089 = 33²).

The spelling of 145944 in words is "one hundred forty-five thousand, nine hundred forty-four".