1540503535542 has 16 divisors (see below), whose sum is σ = 3087869007600. Its totient is φ = 512357522432.

The previous prime is 1540503535499. The next prime is 1540503535577. The reversal of 1540503535542 is 2455353050451.

It is a super-2 number, since 2×1540503535542² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1540503535494 and 1540503535503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285911103 + ... + 285916490.

It is an arithmetic number, because the mean of its divisors is an integer number (192991812975).

Almost surely, 2^{1540503535542} is an apocalyptic number.

1540503535542 is an abundant number, since it is smaller than the sum of its proper divisors (1547365472058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1540503535542 is a wasteful number, since it uses less digits than its factorization.

1540503535542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571828047.

The product of its (nonzero) digits is 900000, while the sum is 42.

Adding to 1540503535542 its reverse (2455353050451), we get a palindrome (3995856585993).

The spelling of 1540503535542 in words is "one trillion, five hundred forty billion, five hundred three million, five hundred thirty-five thousand, five hundred forty-two".