1345253361225 has 72 divisors (see below), whose sum is σ = 2327347394400. Its totient is φ = 685598749440.

The previous prime is 1345253361209. The next prime is 1345253361239. The reversal of 1345253361225 is 5221633525431.

It is not a de Polignac number, because 1345253361225 - 2⁴ = 1345253361209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 41602914 + ... + 41635236.

Almost surely, 2^{1345253361225} is an apocalyptic number.

1345253361225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1345253361225 is a deficient number, since it is larger than the sum of its proper divisors (982094033175).

1345253361225 is a wasteful number, since it uses less digits than its factorization.

1345253361225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33431 (or 33403 counting only the distinct ones).

The product of its digits is 648000, while the sum is 42.

Adding to 1345253361225 its reverse (5221633525431), we get a palindrome (6566886886656).

The spelling of 1345253361225 in words is "one trillion, three hundred forty-five billion, two hundred fifty-three million, three hundred sixty-one thousand, two hundred twenty-five".