1040863131529 has 9 divisors (see below), whose sum is σ = 1127102841543. Its totient is φ = 960784494072.

The previous prime is 1040863131523. The next prime is 1040863131533. The reversal of 1040863131529 is 9251313680401.

The square root of 1040863131529 is 1020227.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 153973836025 + 886889295504 = 392395^2 + 941748^2 .

It is not a de Polignac number, because 1040863131529 - 2³ = 1040863131521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040863131521) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13223712 + ... + 13302190.

Almost surely, 2^{1040863131529} is an apocalyptic number.

1040863131529 is the 1020227-th square number.

1040863131529 is the 510114-th centered octagonal number.

It is an amenable number.

1040863131529 is a deficient number, since it is larger than the sum of its proper divisors (86239710014).

1040863131529 is an frugal number, since it uses more digits than its factorization.

1040863131529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156984 (or 78492 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 1040863131529 in words is "one trillion, forty billion, eight hundred sixty-three million, one hundred thirty-one thousand, five hundred twenty-nine".