1345043525 has 48 divisors (see below), whose sum is σ = 1953589248. Its totient is φ = 899640000.

The previous prime is 1345043507. The next prime is 1345043537. The reversal of 1345043525 is 5253405431.

It is a happy number.

It is not a de Polignac number, because 1345043525 - 2²⁴ = 1328266309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1345043491 and 1345043500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1279250 + ... + 1280300.

It is an arithmetic number, because the mean of its divisors is an integer number (40699776).

Almost surely, 2^1345043525 is an apocalyptic number.

It is an amenable number.

1345043525 is a deficient number, since it is larger than the sum of its proper divisors (608545723).

1345043525 is a wasteful number, since it uses less digits than its factorization.

1345043525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242 (or 1237 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 32.

The square root of 1345043525 is about 36674.8350371205. The cubic root of 1345043525 is about 1103.8552123733.

Adding to 1345043525 its reverse (5253405431), we get a palindrome (6598448956).

The spelling of 1345043525 in words is "one billion, three hundred forty-five million, forty-three thousand, five hundred twenty-five".