11291115 has 24 divisors (see below), whose sum is σ = 19860624. Its totient is φ = 5473600.

The previous prime is 11291101. The next prime is 11291117. The reversal of 11291115 is 51119211.

It is not a de Polignac number, because 11291115 - 2⁶ = 11291051 is a prime.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 11291091 and 11291100.

It is not an unprimeable number, because it can be changed into a prime (11291117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1296 + ... + 4925.

It is an arithmetic number, because the mean of its divisors is an integer number (827526).

Almost surely, 2^11291115 is an apocalyptic number.

11291115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11291115 is a deficient number, since it is larger than the sum of its proper divisors (8569509).

11291115 is a wasteful number, since it uses less digits than its factorization.

11291115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6251 (or 6240 counting only the distinct ones).

The product of its digits is 90, while the sum is 21.

The square root of 11291115 is about 3360.2254388657. The cubic root of 11291115 is about 224.3428728090.

The spelling of 11291115 in words is "eleven million, two hundred ninety-one thousand, one hundred fifteen".