11536881 has 8 divisors (see below), whose sum is σ = 15672960. Its totient is φ = 7546032.

The previous prime is 11536879. The next prime is 11536883. The reversal of 11536881 is 18863511.

11536881 is digitally balanced in base 3, because in such base 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 (11536879) and next prime (11536883).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11536881 - 2¹ = 11536879 is a prime.

It is a super-2 number, since 2×11536881² = 266199246416322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11536883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36121 + ... + 36438.

It is an arithmetic number, because the mean of its divisors is an integer number (1959120).

Almost surely, 2^11536881 is an apocalyptic number.

It is an amenable number.

11536881 is a deficient number, since it is larger than the sum of its proper divisors (4136079).

11536881 is an equidigital number, since it uses as much as digits as its factorization.

11536881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72615.

The product of its digits is 5760, while the sum is 33.

The square root of 11536881 is about 3396.5984455040. The cubic root of 11536881 is about 225.9589099599.

The spelling of 11536881 in words is "eleven million, five hundred thirty-six thousand, eight hundred eighty-one".