203104489 has 4 divisors (see below), whose sum is σ = 232119424. Its totient is φ = 174089556.

The previous prime is 203104481. The next prime is 203104493. The reversal of 203104489 is 984401302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 984401302 = 2 ⋅492200651.

It is a cyclic number.

It is not a de Polignac number, because 203104489 - 2³ = 203104481 is a prime.

It is a super-2 number, since 2×203104489² = 82502866903902242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203104489.

It is not an unprimeable number, because it can be changed into a prime (203104481) 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, 14507457 + ... + 14507470.

It is an arithmetic number, because the mean of its divisors is an integer number (58029856).

Almost surely, 2^203104489 is an apocalyptic number.

It is an amenable number.

203104489 is a deficient number, since it is larger than the sum of its proper divisors (29014935).

203104489 is an equidigital number, since it uses as much as digits as its factorization.

203104489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29014934.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 203104489 is about 14251.4732220918. The cubic root of 203104489 is about 587.8138853254.

The spelling of 203104489 in words is "two hundred three million, one hundred four thousand, four hundred eighty-nine".