1225514113 has 4 divisors (see below), whose sum is σ = 1227133780. Its totient is φ = 1223894448.

The previous prime is 1225514077. The next prime is 1225514119. The reversal of 1225514113 is 3114155221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3114155221 = 97 ⋅32104693.

It can be written as a sum of positive squares in 2 ways, for example, as 402283249 + 823230864 = 20057^2 + 28692^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1225514113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1225514119) 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 3 ways as a sum of consecutive naturals, for example, 808698 + ... + 810211.

It is an arithmetic number, because the mean of its divisors is an integer number (306783445).

Almost surely, 2^1225514113 is an apocalyptic number.

It is an amenable number.

1225514113 is a deficient number, since it is larger than the sum of its proper divisors (1619667).

1225514113 is an equidigital number, since it uses as much as digits as its factorization.

1225514113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619666.

The product of its digits is 1200, while the sum is 25.

The square root of 1225514113 is about 35007.3437010008. The cubic root of 1225514113 is about 1070.1371452008.

Adding to 1225514113 its reverse (3114155221), we get a palindrome (4339669334).

The spelling of 1225514113 in words is "one billion, two hundred twenty-five million, five hundred fourteen thousand, one hundred thirteen".