1172555 has 4 divisors (see below), whose sum is σ = 1407072. Its totient is φ = 938040.

The previous prime is 1172543. The next prime is 1172573. The reversal of 1172555 is 5552711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1172555 - 2⁴ = 1172539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117251 + ... + 117260.

It is an arithmetic number, because the mean of its divisors is an integer number (351768).

2^1172555 is an apocalyptic number.

1172555 is a deficient number, since it is larger than the sum of its proper divisors (234517).

1172555 is an equidigital number, since it uses as much as digits as its factorization.

1172555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234516.

The product of its digits is 1750, while the sum is 26.

The square root of 1172555 is about 1082.8457877279. The cubic root of 1172555 is about 105.4494715472.

The spelling of 1172555 in words is "one million, one hundred seventy-two thousand, five hundred fifty-five".