1228660503 has 8 divisors (see below), whose sum is σ = 1872244608. Its totient is φ = 702091704.

The previous prime is 1228660481. The next prime is 1228660507. The reversal of 1228660503 is 3050668221.

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

It is not a de Polignac number, because 1228660503 - 2⁵ = 1228660471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228660507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29253801 + ... + 29253842.

It is an arithmetic number, because the mean of its divisors is an integer number (234030576).

Almost surely, 2^1228660503 is an apocalyptic number.

1228660503 is a deficient number, since it is larger than the sum of its proper divisors (643584105).

1228660503 is an equidigital number, since it uses as much as digits as its factorization.

1228660503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58507653.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1228660503 is about 35052.2538932948. The cubic root of 1228660503 is about 1071.0521873961.

The spelling of 1228660503 in words is "one billion, two hundred twenty-eight million, six hundred sixty thousand, five hundred three".