1612225115 has 4 divisors (see below), whose sum is σ = 1934670144. Its totient is φ = 1289780088.

The previous prime is 1612225103. The next prime is 1612225123. The reversal of 1612225115 is 5115222161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1612225115 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 161222507 + ... + 161222516.

It is an arithmetic number, because the mean of its divisors is an integer number (483667536).

Almost surely, 2^1612225115 is an apocalyptic number.

1612225115 is a deficient number, since it is larger than the sum of its proper divisors (322445029).

1612225115 is an equidigital number, since it uses as much as digits as its factorization.

1612225115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322445028.

The product of its digits is 1200, while the sum is 26.

The square root of 1612225115 is about 40152.5231461237. The cubic root of 1612225115 is about 1172.5784115360.

Adding to 1612225115 its reverse (5115222161), we get a palindrome (6727447276).

The spelling of 1612225115 in words is "one billion, six hundred twelve million, two hundred twenty-five thousand, one hundred fifteen".