1540327141 has 4 divisors (see below), whose sum is σ = 1593441900. Its totient is φ = 1487212384.

The previous prime is 1540327133. The next prime is 1540327153. The reversal of 1540327141 is 1417230451.

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 1266292225 + 274034916 = 35585^2 + 16554^2 .

It is a cyclic number.

It is not a de Polignac number, because 1540327141 - 2³ = 1540327133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540327111) 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, 26557336 + ... + 26557393.

It is an arithmetic number, because the mean of its divisors is an integer number (398360475).

Almost surely, 2^1540327141 is an apocalyptic number.

It is an amenable number.

1540327141 is a deficient number, since it is larger than the sum of its proper divisors (53114759).

1540327141 is an equidigital number, since it uses as much as digits as its factorization.

1540327141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53114758.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 1540327141 is about 39247.0016816572. The cubic root of 1540327141 is about 1154.8821156149.

Adding to 1540327141 its reverse (1417230451), we get a palindrome (2957557592).

The spelling of 1540327141 in words is "one billion, five hundred forty million, three hundred twenty-seven thousand, one hundred forty-one".