1155755 has 8 divisors (see below), whose sum is σ = 1401792. Its totient is φ = 914688.

The previous prime is 1155733. The next prime is 1155821. The reversal of 1155755 is 5575511.

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 1155755 - 2⁸ = 1155499 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, 707 + ... + 1676.

It is an arithmetic number, because the mean of its divisors is an integer number (175224).

2^1155755 is an apocalyptic number.

1155755 is a deficient number, since it is larger than the sum of its proper divisors (246037).

1155755 is an equidigital number, since it uses as much as digits as its factorization.

1155755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2485.

The product of its digits is 4375, while the sum is 29.

The square root of 1155755 is about 1075.0604634159. The cubic root of 1155755 is about 104.9434313584.

It can be divided in two parts, 115 and 5755, that multiplied together give a triangular number (661825 = T₁₁₅₀).

The spelling of 1155755 in words is "one million, one hundred fifty-five thousand, seven hundred fifty-five".