654430103 has 4 divisors (see below), whose sum is σ = 656521248. Its totient is φ = 652338960.

The previous prime is 654430099. The next prime is 654430141. The reversal of 654430103 is 301034456.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 654430103 - 2² = 654430099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654430163) 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, 1045103 + ... + 1045728.

It is an arithmetic number, because the mean of its divisors is an integer number (164130312).

Almost surely, 2^654430103 is an apocalyptic number.

654430103 is a deficient number, since it is larger than the sum of its proper divisors (2091145).

654430103 is a wasteful number, since it uses less digits than its factorization.

654430103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091144.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 654430103 is about 25581.8315020641. The cubic root of 654430103 is about 868.2026145926.

Adding to 654430103 its reverse (301034456), we get a palindrome (955464559).

The spelling of 654430103 in words is "six hundred fifty-four million, four hundred thirty thousand, one hundred three".