145446 has 16 divisors (see below), whose sum is σ = 332544. Its totient is φ = 41544.

The previous prime is 145441. The next prime is 145451. The reversal of 145446 is 644541.

It is an interprime number because it is at equal distance from previous prime (145441) and next prime (145451).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145441) 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, 1690 + ... + 1773.

It is an arithmetic number, because the mean of its divisors is an integer number (20784).

2¹⁴⁵⁴⁴⁶ is an apocalyptic number.

145446 is an abundant number, since it is smaller than the sum of its proper divisors (187098).

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

145446 is a wasteful number, since it uses less digits than its factorization.

145446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3475.

The product of its digits is 1920, while the sum is 24.

The square root of 145446 is about 381.3738323483. The cubic root of 145446 is about 52.5896879649.

Adding to 145446 its reverse (644541), we get a palindrome (789987).

It can be divided in two parts, 14 and 5446, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 145446 in words is "one hundred forty-five thousand, four hundred forty-six".