11543955 has 8 divisors (see below), whose sum is σ = 18470352. Its totient is φ = 6156768.

The previous prime is 11543947. The next prime is 11543957. The reversal of 11543955 is 55934511.

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

It is not a de Polignac number, because 11543955 - 2³ = 11543947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11543957) 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, 384784 + ... + 384813.

It is an arithmetic number, because the mean of its divisors is an integer number (2308794).

Almost surely, 2^11543955 is an apocalyptic number.

11543955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11543955 is a deficient number, since it is larger than the sum of its proper divisors (6926397).

11543955 is an equidigital number, since it uses as much as digits as its factorization.

11543955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769605.

The product of its digits is 13500, while the sum is 33.

The square root of 11543955 is about 3397.6396218551. The cubic root of 11543955 is about 226.0050838129.

The spelling of 11543955 in words is "eleven million, five hundred forty-three thousand, nine hundred fifty-five".