10891136 has 16 divisors (see below), whose sum is σ = 21697440. Its totient is φ = 5445504.

The previous prime is 10891099. The next prime is 10891147. The reversal of 10891136 is 63119801.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 10891099 and 10891108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42416 + ... + 42671.

It is an arithmetic number, because the mean of its divisors is an integer number (1356090).

Almost surely, 2^10891136 is an apocalyptic number.

10891136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10891136 is a deficient number, since it is larger than the sum of its proper divisors (10806304).

10891136 is an frugal number, since it uses more digits than its factorization.

10891136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85101 (or 85089 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 10891136 is about 3300.1721167236. The cubic root of 10891136 is about 221.6619045340.

The spelling of 10891136 in words is "ten million, eight hundred ninety-one thousand, one hundred thirty-six".