11881485 has 96 divisors (see below), whose sum is σ = 26836992. Its totient is φ = 4898880.

The previous prime is 11881481. The next prime is 11881489. The reversal of 11881485 is 58418811.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11881481) and next prime (11881489).

It is not a de Polignac number, because 11881485 - 2² = 11881481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11881481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 93492 + ... + 93618.

It is an arithmetic number, because the mean of its divisors is an integer number (279552).

Almost surely, 2^11881485 is an apocalyptic number.

11881485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11881485 is an abundant number, since it is smaller than the sum of its proper divisors (14955507).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11881485 is a wasteful number, since it uses less digits than its factorization.

11881485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 153 counting only the distinct ones).

The product of its digits is 10240, while the sum is 36.

The square root of 11881485 is about 3446.9530022906. The cubic root of 11881485 is about 228.1866546307.

The spelling of 11881485 in words is "eleven million, eight hundred eighty-one thousand, four hundred eighty-five".