1225446623 has 4 divisors (see below), whose sum is σ = 1258566840. Its totient is φ = 1192326408.

The previous prime is 1225446619. The next prime is 1225446643. The reversal of 1225446623 is 3266445221.

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

It is a cyclic number.

It is not a de Polignac number, because 1225446623 - 2² = 1225446619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225446643) 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, 16560053 + ... + 16560126.

It is an arithmetic number, because the mean of its divisors is an integer number (314641710).

Almost surely, 2^1225446623 is an apocalyptic number.

1225446623 is a deficient number, since it is larger than the sum of its proper divisors (33120217).

1225446623 is an equidigital number, since it uses as much as digits as its factorization.

1225446623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33120216.

The product of its digits is 69120, while the sum is 35.

The square root of 1225446623 is about 35006.3797471261. The cubic root of 1225446623 is about 1070.1175004163.

The spelling of 1225446623 in words is "one billion, two hundred twenty-five million, four hundred forty-six thousand, six hundred twenty-three".