1540261103 has 2 divisors, whose sum is σ = 1540261104. Its totient is φ = 1540261102.

The previous prime is 1540261001. The next prime is 1540261141. The reversal of 1540261103 is 3011620451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1540261103 - 2¹⁸ = 1539998959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1540261153) 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, 770130551 + 770130552.

It is an arithmetic number, because the mean of its divisors is an integer number (770130552).

Almost surely, 2^1540261103 is an apocalyptic number.

1540261103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540261103 is an equidigital number, since it uses as much as digits as its factorization.

1540261103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1540261103 is about 39246.1603599639. The cubic root of 1540261103 is about 1154.8656110701.

Adding to 1540261103 its reverse (3011620451), we get a palindrome (4551881554).

The spelling of 1540261103 in words is "one billion, five hundred forty million, two hundred sixty-one thousand, one hundred three".