1228645093 has 8 divisors (see below), whose sum is σ = 1326909528. Its totient is φ = 1130916864.

The previous prime is 1228645091. The next prime is 1228645109. The reversal of 1228645093 is 3905468221.

It can be written as a sum of positive squares in 4 ways, for example, as 8749764 + 1219895329 = 2958^2 + 34927^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1228645093 - 2¹ = 1228645091 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 (1228645091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129280 + ... + 138457.

It is an arithmetic number, because the mean of its divisors is an integer number (165863691).

Almost surely, 2^1228645093 is an apocalyptic number.

1228645093 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1228645093 is a deficient number, since it is larger than the sum of its proper divisors (98264435).

1228645093 is a wasteful number, since it uses less digits than its factorization.

1228645093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268103.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 1228645093 is about 35052.0340779248. The cubic root of 1228645093 is about 1071.0477096246.

The spelling of 1228645093 in words is "one billion, two hundred twenty-eight million, six hundred forty-five thousand, ninety-three".