1545144042523 has 2 divisors, whose sum is σ = 1545144042524. Its totient is φ = 1545144042522.

The previous prime is 1545144042499. The next prime is 1545144042529. The reversal of 1545144042523 is 3252404415451.

It is a strong prime.

It is an emirp because it is prime and its reverse (3252404415451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1545144042523 - 2²⁵ = 1545110488091 is a prime.

It is a super-2 number, since 2×1545144042523² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1545144042529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 772572021261 + 772572021262.

It is an arithmetic number, because the mean of its divisors is an integer number (772572021262).

Almost surely, 2^{1545144042523} is an apocalyptic number.

1545144042523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1545144042523 is an equidigital number, since it uses as much as digits as its factorization.

1545144042523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 1545144042523 its reverse (3252404415451), we get a palindrome (4797548457974).

The spelling of 1545144042523 in words is "one trillion, five hundred forty-five billion, one hundred forty-four million, forty-two thousand, five hundred twenty-three".