1032561869 has 4 divisors (see below), whose sum is σ = 1033025280. Its totient is φ = 1032098460.

The previous prime is 1032561863. The next prime is 1032561883. The reversal of 1032561869 is 9681652301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9681652301 = 41 ⋅236137861.

It is a cyclic number.

It is not a de Polignac number, because 1032561869 - 2⁸ = 1032561613 is a prime.

It is a super-2 number, since 2×1032561869² = 2132368026625546322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1032561863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228347 + ... + 232824.

It is an arithmetic number, because the mean of its divisors is an integer number (258256320).

Almost surely, 2^1032561869 is an apocalyptic number.

It is an amenable number.

1032561869 is a deficient number, since it is larger than the sum of its proper divisors (463411).

1032561869 is an equidigital number, since it uses as much as digits as its factorization.

1032561869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463410.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 1032561869 is about 32133.5007274340. The cubic root of 1032561869 is about 1010.7382339248.

The spelling of 1032561869 in words is "one billion, thirty-two million, five hundred sixty-one thousand, eight hundred sixty-nine".