1228108853 has 4 divisors (see below), whose sum is σ = 1256669568. Its totient is φ = 1199548140.

The previous prime is 1228108837. The next prime is 1228108859. The reversal of 1228108853 is 3588018221.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1228108853 - 2⁴ = 1228108837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228108859) 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, 14280293 + ... + 14280378.

It is an arithmetic number, because the mean of its divisors is an integer number (314167392).

Almost surely, 2^1228108853 is an apocalyptic number.

It is an amenable number.

1228108853 is a deficient number, since it is larger than the sum of its proper divisors (28560715).

1228108853 is an equidigital number, since it uses as much as digits as its factorization.

1228108853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28560714.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 1228108853 is about 35044.3840436667. The cubic root of 1228108853 is about 1070.8918679841.

The spelling of 1228108853 in words is "one billion, two hundred twenty-eight million, one hundred eight thousand, eight hundred fifty-three".