1043540652505 has 64 divisors (see below), whose sum is σ = 1434955652928. Its totient is φ = 721708646400.

The previous prime is 1043540652443. The next prime is 1043540652509. The reversal of 1043540652505 is 5052560453401.

It can be written as a sum of positive squares in 32 ways, for example, as 461316715209 + 582223937296 = 679203^2 + 763036^2 .

It is not a de Polignac number, because 1043540652505 - 2¹³ = 1043540644313 is a prime.

It is a super-2 number, since 2×1043540652505² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1043540652509) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 539854519 + ... + 539856451.

It is an arithmetic number, because the mean of its divisors is an integer number (22421182077).

Almost surely, 2^{1043540652505} is an apocalyptic number.

It is an amenable number.

1043540652505 is a deficient number, since it is larger than the sum of its proper divisors (391415000423).

1043540652505 is a wasteful number, since it uses less digits than its factorization.

1043540652505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 1043540652505 in words is "one trillion, forty-three billion, five hundred forty million, six hundred fifty-two thousand, five hundred five".