1129561284527 has 24 divisors (see below), whose sum is σ = 1248664968720. Its totient is φ = 1021058887680.

The previous prime is 1129561284479. The next prime is 1129561284571. The reversal of 1129561284527 is 7254821659211.

It is not a de Polignac number, because 1129561284527 - 2¹⁰ = 1129561283503 is a prime.

It is a super-2 number, since 2×1129561284527² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129561284227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2098799 + ... + 2581487.

It is an arithmetic number, because the mean of its divisors is an integer number (52027707030).

Almost surely, 2^{1129561284527} is an apocalyptic number.

1129561284527 is a deficient number, since it is larger than the sum of its proper divisors (119103684193).

1129561284527 is a wasteful number, since it uses less digits than its factorization.

1129561284527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483003 (or 482990 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 53.

The spelling of 1129561284527 in words is "one trillion, one hundred twenty-nine billion, five hundred sixty-one million, two hundred eighty-four thousand, five hundred twenty-seven".