145783 has 8 divisors (see below), whose sum is σ = 164880. Its totient is φ = 127680.

The previous prime is 145777. The next prime is 145799. The reversal of 145783 is 387541.

145783 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145783 is a prime.

It is a Duffinian number.

145783 is a modest number, since divided by 783 gives 145 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91 + ... + 547.

It is an arithmetic number, because the mean of its divisors is an integer number (20610).

2¹⁴⁵⁷⁸³ is an apocalyptic number.

145783 is a deficient number, since it is larger than the sum of its proper divisors (19097).

145783 is a wasteful number, since it uses less digits than its factorization.

145783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497.

The product of its digits is 3360, while the sum is 28.

The square root of 145783 is about 381.8154004228. The cubic root of 145783 is about 52.6302735992.

It can be divided in two parts, 14578 and 3, that multiplied together give a palindrome (43734).

The spelling of 145783 in words is "one hundred forty-five thousand, seven hundred eighty-three".