1223538827 has 8 divisors (see below), whose sum is σ = 1428082176. Its totient is φ = 1026433512.

The previous prime is 1223538817. The next prime is 1223538859. The reversal of 1223538827 is 7288353221.

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 1223538827 - 2¹⁶ = 1223473291 is a prime.

It is a super-2 number, since 2×1223538827² = 2994094522353071858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223538817) 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, 1859153 + ... + 1859810.

It is an arithmetic number, because the mean of its divisors is an integer number (178510272).

Almost surely, 2^1223538827 is an apocalyptic number.

1223538827 is a deficient number, since it is larger than the sum of its proper divisors (204543349).

1223538827 is an equidigital number, since it uses as much as digits as its factorization.

1223538827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719017.

The product of its digits is 161280, while the sum is 41.

The square root of 1223538827 is about 34979.1198717178. The cubic root of 1223538827 is about 1069.5618863205.

The spelling of 1223538827 in words is "one billion, two hundred twenty-three million, five hundred thirty-eight thousand, eight hundred twenty-seven".