1132520129 has 4 divisors (see below), whose sum is σ = 1219637076. Its totient is φ = 1045403184.

The previous prime is 1132520119. The next prime is 1132520149. The reversal of 1132520129 is 9210252311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9210252311 = 13 ⋅708480947.

It can be written as a sum of positive squares in 2 ways, for example, as 99540529 + 1032979600 = 9977^2 + 32140^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1132520129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1132520098 and 1132520107.

It is not an unprimeable number, because it can be changed into a prime (1132520119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43558454 + ... + 43558479.

It is an arithmetic number, because the mean of its divisors is an integer number (304909269).

Almost surely, 2^1132520129 is an apocalyptic number.

It is an amenable number.

1132520129 is a deficient number, since it is larger than the sum of its proper divisors (87116947).

1132520129 is an equidigital number, since it uses as much as digits as its factorization.

1132520129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87116946.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1132520129 is about 33652.9364097697. The cubic root of 1132520129 is about 1042.3541742135.

The spelling of 1132520129 in words is "one billion, one hundred thirty-two million, five hundred twenty thousand, one hundred twenty-nine".