1545538183243 has 12 divisors (see below), whose sum is σ = 1649581185112. Its totient is φ = 1447730161920.

The previous prime is 1545538183229. The next prime is 1545538183249. The reversal of 1545538183243 is 3423818355451.

It is not a de Polignac number, because 1545538183243 - 2²⁹ = 1545001312331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1545538183249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12611730 + ... + 12733687.

Almost surely, 2^{1545538183243} is an apocalyptic number.

1545538183243 is a deficient number, since it is larger than the sum of its proper divisors (104043001869).

1545538183243 is a wasteful number, since it uses less digits than its factorization.

1545538183243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25345662 (or 25345645 counting only the distinct ones).

The product of its digits is 6912000, while the sum is 52.

The spelling of 1545538183243 in words is "one trillion, five hundred forty-five billion, five hundred thirty-eight million, one hundred eighty-three thousand, two hundred forty-three".