11914881 has 32 divisors (see below), whose sum is σ = 18862080. Its totient is φ = 6609600.

The previous prime is 11914879. The next prime is 11914883. The reversal of 11914881 is 18841911.

11914881 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11914879) and next prime (11914883).

It is not a de Polignac number, because 11914881 - 2¹ = 11914879 is a prime.

It is a super-2 number, since 2×11914881² = 283928778488322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (11914883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19131 + ... + 19743.

It is an arithmetic number, because the mean of its divisors is an integer number (589440).

Almost surely, 2^11914881 is an apocalyptic number.

11914881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11914881 is a deficient number, since it is larger than the sum of its proper divisors (6947199).

11914881 is a wasteful number, since it uses less digits than its factorization.

11914881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677.

The product of its digits is 2304, while the sum is 33.

The square root of 11914881 is about 3451.7938814477. The cubic root of 11914881 is about 228.4002472590.

The spelling of 11914881 in words is "eleven million, nine hundred fourteen thousand, eight hundred eighty-one".