145546 has 8 divisors (see below), whose sum is σ = 222084. Its totient is φ = 71520.

The previous prime is 145543. The next prime is 145547. The reversal of 145546 is 645541.

It can be written as a sum of positive squares in 2 ways, for example, as 133225 + 12321 = 365^2 + 111^2 .

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

It is a plaindrome in base 16.

It is a zygodrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 145546.

It is not an unprimeable number, because it can be changed into a prime (145543) 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 3 ways as a sum of consecutive naturals, for example, 475 + ... + 718.

2¹⁴⁵⁵⁴⁶ is an apocalyptic number.

145546 is a deficient number, since it is larger than the sum of its proper divisors (76538).

145546 is a wasteful number, since it uses less digits than its factorization.

145546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256.

The product of its digits is 2400, while the sum is 25.

The square root of 145546 is about 381.5049147783. The cubic root of 145546 is about 52.6017377153.

The spelling of 145546 in words is "one hundred forty-five thousand, five hundred forty-six".