220900903 has 2 divisors, whose sum is σ = 220900904. Its totient is φ = 220900902.

The previous prime is 220900891. The next prime is 220900921. The reversal of 220900903 is 309009022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220900903 - 2⁵ = 220900871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220900963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110450451 + 110450452.

It is an arithmetic number, because the mean of its divisors is an integer number (110450452).

Almost surely, 2^220900903 is an apocalyptic number.

220900903 is a deficient number, since it is larger than the sum of its proper divisors (1).

220900903 is an equidigital number, since it uses as much as digits as its factorization.

220900903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 220900903 is about 14862.7353808106. The cubic root of 220900903 is about 604.5039788402.

Adding to 220900903 its reverse (309009022), we get a palindrome (529909925).

The spelling of 220900903 in words is "two hundred twenty million, nine hundred thousand, nine hundred three".