1540156337413 has 4 divisors (see below), whose sum is σ = 1553786039628. Its totient is φ = 1526526635200.

The previous prime is 1540156337411. The next prime is 1540156337417. The reversal of 1540156337413 is 3147336510451.

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

It can be written as a sum of positive squares in 2 ways, for example, as 657943232769 + 882213104644 = 811137^2 + 939262^2 .

It is a cyclic number.

It is not a de Polignac number, because 1540156337413 - 2¹ = 1540156337411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1540156337413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540156337411) 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 3 ways as a sum of consecutive naturals, for example, 6814850938 + ... + 6814851163.

It is an arithmetic number, because the mean of its divisors is an integer number (388446509907).

Almost surely, 2^{1540156337413} is an apocalyptic number.

It is an amenable number.

1540156337413 is a deficient number, since it is larger than the sum of its proper divisors (13629702215).

1540156337413 is a wasteful number, since it uses less digits than its factorization.

1540156337413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13629702214.

The product of its (nonzero) digits is 453600, while the sum is 43.

The spelling of 1540156337413 in words is "one trillion, five hundred forty billion, one hundred fifty-six million, three hundred thirty-seven thousand, four hundred thirteen".