12090403 has 16 divisors (see below), whose sum is σ = 14156800. Its totient is φ = 10225440.

The previous prime is 12090343. The next prime is 12090409. The reversal of 12090403 is 30409021.

12090403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12090403 - 2¹³ = 12082211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12090409) 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, 6868 + ... + 8446.

It is an arithmetic number, because the mean of its divisors is an integer number (884800).

Almost surely, 2^12090403 is an apocalyptic number.

12090403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12090403 is a deficient number, since it is larger than the sum of its proper divisors (2066397).

12090403 is a wasteful number, since it uses less digits than its factorization.

12090403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 12090403 is about 3477.1256807887. The cubic root of 12090403 is about 229.5163307963.

Adding to 12090403 its reverse (30409021), we get a palindrome (42499424).

The spelling of 12090403 in words is "twelve million, ninety thousand, four hundred three".