1225688027 has 2 divisors, whose sum is σ = 1225688028. Its totient is φ = 1225688026.

The previous prime is 1225687993. The next prime is 1225688029. The reversal of 1225688027 is 7208865221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1225688027 - 2¹⁰ = 1225687003 is a prime.

It is a super-2 number, since 2×1225688027² = 3004622279062305458, which contains 22 as substring.

Together with 1225688029, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1225688029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612844013 + 612844014.

It is an arithmetic number, because the mean of its divisors is an integer number (612844014).

Almost surely, 2^1225688027 is an apocalyptic number.

1225688027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225688027 is an equidigital number, since it uses as much as digits as its factorization.

1225688027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 1225688027 is about 35009.8275774103. The cubic root of 1225688027 is about 1070.1877642366.

The spelling of 1225688027 in words is "one billion, two hundred twenty-five million, six hundred eighty-eight thousand, twenty-seven".