11291951 has 16 divisors (see below), whose sum is σ = 12718080. Its totient is φ = 9938880.

The previous prime is 11291941. The next prime is 11291957. The reversal of 11291951 is 15919211.

It is a cyclic number.

It is not a de Polignac number, because 11291951 - 2⁶ = 11291887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11291957) 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 15 ways as a sum of consecutive naturals, for example, 82355 + ... + 82491.

It is an arithmetic number, because the mean of its divisors is an integer number (794880).

Almost surely, 2^11291951 is an apocalyptic number.

11291951 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11291951 is a deficient number, since it is larger than the sum of its proper divisors (1426129).

11291951 is a wasteful number, since it uses less digits than its factorization.

11291951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334.

The product of its digits is 810, while the sum is 29.

The square root of 11291951 is about 3360.3498329787. The cubic root of 11291951 is about 224.3484094931.

The spelling of 11291951 in words is "eleven million, two hundred ninety-one thousand, nine hundred fifty-one".