1225456415 has 4 divisors (see below), whose sum is σ = 1470547704. Its totient is φ = 980365128.

The previous prime is 1225456403. The next prime is 1225456417. The reversal of 1225456415 is 5146545221.

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 1225456415 - 2¹⁰ = 1225455391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225456417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122545637 + ... + 122545646.

It is an arithmetic number, because the mean of its divisors is an integer number (367636926).

Almost surely, 2^1225456415 is an apocalyptic number.

1225456415 is a deficient number, since it is larger than the sum of its proper divisors (245091289).

1225456415 is an equidigital number, since it uses as much as digits as its factorization.

1225456415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245091288.

The product of its digits is 48000, while the sum is 35.

The square root of 1225456415 is about 35006.5196070675. The cubic root of 1225456415 is about 1070.1203506867.

The spelling of 1225456415 in words is "one billion, two hundred twenty-five million, four hundred fifty-six thousand, four hundred fifteen".