1225405113 has 8 divisors (see below), whose sum is σ = 1636180800. Its totient is φ = 815783088.

The previous prime is 1225405087. The next prime is 1225405123. The reversal of 1225405113 is 3115045221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1225405113 - 2¹² = 1225401017 is a prime.

It is a super-3 number, since 3×1225405113³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1225405123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285933 + ... + 290186.

It is an arithmetic number, because the mean of its divisors is an integer number (204522600).

Almost surely, 2^1225405113 is an apocalyptic number.

It is an amenable number.

1225405113 is a deficient number, since it is larger than the sum of its proper divisors (410775687).

1225405113 is an equidigital number, since it uses as much as digits as its factorization.

1225405113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576831.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1225405113 is about 35005.7868501766. The cubic root of 1225405113 is about 1070.1054174532.

The spelling of 1225405113 in words is "one billion, two hundred twenty-five million, four hundred five thousand, one hundred thirteen".