1089935261 has 8 divisors (see below), whose sum is σ = 1110660000. Its totient is φ = 1069285680.

The previous prime is 1089935239. The next prime is 1089935303. The reversal of 1089935261 is 1625399801.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1089935261 is a prime.

It is a super-2 number, since 2×1089935261² = 2375917746342276242, 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 (1089935221) 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 7 ways as a sum of consecutive naturals, for example, 10931 + ... + 47951.

It is an arithmetic number, because the mean of its divisors is an integer number (138832500).

Almost surely, 2^1089935261 is an apocalyptic number.

It is an amenable number.

1089935261 is a deficient number, since it is larger than the sum of its proper divisors (20724739).

1089935261 is an equidigital number, since it uses as much as digits as its factorization.

1089935261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37579.

The product of its (nonzero) digits is 116640, while the sum is 44.

The square root of 1089935261 is about 33014.1675799951. The cubic root of 1089935261 is about 1029.1220913503.

The spelling of 1089935261 in words is "one billion, eighty-nine million, nine hundred thirty-five thousand, two hundred sixty-one".