142543142323405 has 16 divisors (see below), whose sum is σ = 175609538020224. Its totient is φ = 111028851144640.

The previous prime is 142543142323403. The next prime is 142543142323459. The reversal of 142543142323405 is 504323241345241.

It is not a de Polignac number, because 142543142323405 - 2¹ = 142543142323403 is a prime.

It is a super-2 number, since 2×142543142323405² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142543142323403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2053013569 + ... + 2053082998.

It is an arithmetic number, because the mean of its divisors is an integer number (10975596126264).

Almost surely, 2^{142543142323405} is an apocalyptic number.

It is an amenable number.

142543142323405 is a deficient number, since it is larger than the sum of its proper divisors (33066395696819).

142543142323405 is a wasteful number, since it uses less digits than its factorization.

142543142323405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106096756.

The product of its (nonzero) digits is 1382400, while the sum is 43.

Adding to 142543142323405 its reverse (504323241345241), we get a palindrome (646866383668646).

The spelling of 142543142323405 in words is "one hundred forty-two trillion, five hundred forty-three billion, one hundred forty-two million, three hundred twenty-three thousand, four hundred five".