1540127503 has 2 divisors, whose sum is σ = 1540127504. Its totient is φ = 1540127502.

The previous prime is 1540127497. The next prime is 1540127539. The reversal of 1540127503 is 3057210451.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3057210451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1540127503 - 2⁵ = 1540127471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1540127003) 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 as a sum of consecutive naturals, namely, 770063751 + 770063752.

It is an arithmetic number, because the mean of its divisors is an integer number (770063752).

Almost surely, 2^1540127503 is an apocalyptic number.

1540127503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540127503 is an equidigital number, since it uses as much as digits as its factorization.

1540127503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 1540127503 is about 39244.4582457192. The cubic root of 1540127503 is about 1154.8322196521.

Adding to 1540127503 its reverse (3057210451), we get a palindrome (4597337954).

The spelling of 1540127503 in words is "one billion, five hundred forty million, one hundred twenty-seven thousand, five hundred three".