1540014531423 has 16 divisors (see below), whose sum is σ = 2082418430976. Its totient is φ = 1012145510880.

The previous prime is 1540014531413. The next prime is 1540014531427. The reversal of 1540014531423 is 3241354100451.

It is not a de Polignac number, because 1540014531423 - 2¹³ = 1540014523231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540014531427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2900565 + ... + 3390177.

It is an arithmetic number, because the mean of its divisors is an integer number (130151151936).

Almost surely, 2^{1540014531423} is an apocalyptic number.

1540014531423 is a deficient number, since it is larger than the sum of its proper divisors (542403899553).

1540014531423 is a wasteful number, since it uses less digits than its factorization.

1540014531423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504454.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 1540014531423 its reverse (3241354100451), we get a palindrome (4781368631874).

The spelling of 1540014531423 in words is "one trillion, five hundred forty billion, fourteen million, five hundred thirty-one thousand, four hundred twenty-three".