1345522225 has 12 divisors (see below), whose sum is σ = 1669558320. Its totient is φ = 1075701200.

The previous prime is 1345522223. The next prime is 1345522249. The reversal of 1345522225 is 5222255431.

It is not a de Polignac number, because 1345522225 - 2¹ = 1345522223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1345522223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22146 + ... + 56404.

It is an arithmetic number, because the mean of its divisors is an integer number (139129860).

Almost surely, 2^1345522225 is an apocalyptic number.

It is an amenable number.

1345522225 is a deficient number, since it is larger than the sum of its proper divisors (324036095).

1345522225 is a wasteful number, since it uses less digits than its factorization.

1345522225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35840 (or 35835 counting only the distinct ones).

The product of its digits is 24000, while the sum is 31.

The square root of 1345522225 is about 36681.3607299402. The cubic root of 1345522225 is about 1103.9861505933.

Adding to 1345522225 its reverse (5222255431), we get a palindrome (6567777656).

The spelling of 1345522225 in words is "one billion, three hundred forty-five million, five hundred twenty-two thousand, two hundred twenty-five".