1345251223452 has 48 divisors (see below), whose sum is σ = 3171384986112. Its totient is φ = 443798931840.

The previous prime is 1345251223429. The next prime is 1345251223483. The reversal of 1345251223452 is 2543221525431.

It is a self number, because there is not a number n which added to its sum of digits gives 1345251223452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691908 + ... + 1780235.

It is an arithmetic number, because the mean of its divisors is an integer number (66070520544).

Almost surely, 2^{1345251223452} is an apocalyptic number.

1345251223452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1345251223452 is an abundant number, since it is smaller than the sum of its proper divisors (1826133762660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1345251223452 is a wasteful number, since it uses less digits than its factorization.

1345251223452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472618 (or 2472616 counting only the distinct ones).

The product of its digits is 288000, while the sum is 39.

Adding to 1345251223452 its reverse (2543221525431), we get a palindrome (3888472748883).

The spelling of 1345251223452 in words is "one trillion, three hundred forty-five billion, two hundred fifty-one million, two hundred twenty-three thousand, four hundred fifty-two".