1345124245541 has 4 divisors (see below), whose sum is σ = 1345127384172. Its totient is φ = 1345121106912.

The previous prime is 1345124245519. The next prime is 1345124245571. The reversal of 1345124245541 is 1455424215431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 710895177316 + 634229068225 = 843146^2 + 796385^2 .

It is a cyclic number.

It is not a de Polignac number, because 1345124245541 - 2¹⁴ = 1345124229157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345124245571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801110 + ... + 1825383.

It is an arithmetic number, because the mean of its divisors is an integer number (336281846043).

Almost surely, 2^{1345124245541} is an apocalyptic number.

It is an amenable number.

1345124245541 is a deficient number, since it is larger than the sum of its proper divisors (3138631).

1345124245541 is an equidigital number, since it uses as much as digits as its factorization.

1345124245541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138630.

The product of its digits is 384000, while the sum is 41.

The spelling of 1345124245541 in words is "one trillion, three hundred forty-five billion, one hundred twenty-four million, two hundred forty-five thousand, five hundred forty-one".