1540355026229 has 2 divisors, whose sum is σ = 1540355026230. Its totient is φ = 1540355026228.

The previous prime is 1540355026181. The next prime is 1540355026241. The reversal of 1540355026229 is 9226205530451.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1495961379025 + 44393647204 = 1223095^2 + 210698^2 .

It is a cyclic number.

It is not a de Polignac number, because 1540355026229 - 2⁴⁰ = 440843398453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1540355026229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1540355026289) 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, 770177513114 + 770177513115.

It is an arithmetic number, because the mean of its divisors is an integer number (770177513115).

Almost surely, 2^{1540355026229} is an apocalyptic number.

It is an amenable number.

1540355026229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1540355026229 is an equidigital number, since it uses as much as digits as its factorization.

1540355026229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 1540355026229 in words is "one trillion, five hundred forty billion, three hundred fifty-five million, twenty-six thousand, two hundred twenty-nine".