1225672563 has 8 divisors (see below), whose sum is σ = 1636564176. Its totient is φ = 815948000.

The previous prime is 1225672517. The next prime is 1225672589. The reversal of 1225672563 is 3652765221.

It is a happy number.

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 1225672563 - 2⁹ = 1225672051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225672663) 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, 289308 + ... + 293513.

It is an arithmetic number, because the mean of its divisors is an integer number (204570522).

Almost surely, 2^1225672563 is an apocalyptic number.

1225672563 is a deficient number, since it is larger than the sum of its proper divisors (410891613).

1225672563 is an equidigital number, since it uses as much as digits as its factorization.

1225672563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583525.

The product of its digits is 151200, while the sum is 39.

The square root of 1225672563 is about 35009.6067244407. The cubic root of 1225672563 is about 1070.1832635119.

The spelling of 1225672563 in words is "one billion, two hundred twenty-five million, six hundred seventy-two thousand, five hundred sixty-three".