11143955 has 8 divisors (see below), whose sum is σ = 13411392. Its totient is φ = 8889408.

The previous prime is 11143949. The next prime is 11143963. The reversal of 11143955 is 55934111.

11143955 = T₃₉ + T₄₀ + ... + T₄₀₅.

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

It is a cyclic number.

It is not a de Polignac number, because 11143955 - 2¹² = 11139859 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1202 + ... + 4871.

It is an arithmetic number, because the mean of its divisors is an integer number (1676424).

Almost surely, 2^11143955 is an apocalyptic number.

11143955 is a deficient number, since it is larger than the sum of its proper divisors (2267437).

11143955 is an equidigital number, since it uses as much as digits as its factorization.

11143955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6445.

The product of its digits is 2700, while the sum is 29.

The square root of 11143955 is about 3338.2562813541. The cubic root of 11143955 is about 223.3639682240.

The spelling of 11143955 in words is "eleven million, one hundred forty-three thousand, nine hundred fifty-five".