153803 has 4 divisors (see below), whose sum is σ = 165648. Its totient is φ = 141960.

The previous prime is 153763. The next prime is 153817. The reversal of 153803 is 308351.

153803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 308351 = 19 ⋅16229.

It is not a de Polignac number, because 153803 - 2⁶ = 153739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5903 + ... + 5928.

It is an arithmetic number, because the mean of its divisors is an integer number (41412).

2¹⁵³⁸⁰³ is an apocalyptic number.

153803 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

153803 is a deficient number, since it is larger than the sum of its proper divisors (11845).

153803 is a wasteful number, since it uses less digits than its factorization.

153803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11844.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 153803 is about 392.1772558423. The cubic root of 153803 is about 53.5782184833.

The spelling of 153803 in words is "one hundred fifty-three thousand, eight hundred three".