1225914667 has 4 divisors (see below), whose sum is σ = 1226282776. Its totient is φ = 1225546560.

The previous prime is 1225914661. The next prime is 1225914671. The reversal of 1225914667 is 7664195221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1225914667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225914661) 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, 179013 + ... + 185734.

It is an arithmetic number, because the mean of its divisors is an integer number (306570694).

Almost surely, 2^1225914667 is an apocalyptic number.

1225914667 is a deficient number, since it is larger than the sum of its proper divisors (368109).

1225914667 is an equidigital number, since it uses as much as digits as its factorization.

1225914667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368108.

The product of its digits is 181440, while the sum is 43.

The square root of 1225914667 is about 35013.0642332259. The cubic root of 1225914667 is about 1070.2537224036.

The spelling of 1225914667 in words is "one billion, two hundred twenty-five million, nine hundred fourteen thousand, six hundred sixty-seven".