1542022145143 has 4 divisors (see below), whose sum is σ = 1579632441408. Its totient is φ = 1504411848880.

The previous prime is 1542022145129. The next prime is 1542022145239. The reversal of 1542022145143 is 3415412202451.

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

It is a cyclic number.

It is not a de Polignac number, because 1542022145143 - 2⁹ = 1542022144631 is a prime.

It is a super-2 number, since 2×1542022145143² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1542022145099 and 1542022145108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542022115143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18805148071 + ... + 18805148152.

It is an arithmetic number, because the mean of its divisors is an integer number (394908110352).

Almost surely, 2^{1542022145143} is an apocalyptic number.

1542022145143 is a deficient number, since it is larger than the sum of its proper divisors (37610296265).

1542022145143 is an equidigital number, since it uses as much as digits as its factorization.

1542022145143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37610296264.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 1542022145143 its reverse (3415412202451), we get a palindrome (4957434347594).

The spelling of 1542022145143 in words is "one trillion, five hundred forty-two billion, twenty-two million, one hundred forty-five thousand, one hundred forty-three".