145803 has 16 divisors (see below), whose sum is σ = 228096. Its totient is φ = 81120.

The previous prime is 145799. The next prime is 145807. The reversal of 145803 is 308541.

145803 is nontrivially palindromic in base 11.

145803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (145799) and next prime (145807).

It is not a de Polignac number, because 145803 - 2² = 145799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 145803.

It is not an unprimeable number, because it can be changed into a prime (145807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1048 + ... + 1178.

It is an arithmetic number, because the mean of its divisors is an integer number (14256).

2¹⁴⁵⁸⁰³ is an apocalyptic number.

145803 is a deficient number, since it is larger than the sum of its proper divisors (82293).

145803 is a wasteful number, since it uses less digits than its factorization.

145803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 145803 is about 381.8415901915. The cubic root of 145803 is about 52.6326802752.

The spelling of 145803 in words is "one hundred forty-five thousand, eight hundred three".