1140155 has 8 divisors (see below), whose sum is σ = 1405392. Its totient is φ = 887328.

The previous prime is 1140143. The next prime is 1140157. The reversal of 1140155 is 5510411.

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 1140155 - 2⁶ = 1140091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140157) 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, 2897 + ... + 3266.

It is an arithmetic number, because the mean of its divisors is an integer number (175674).

2^1140155 is an apocalyptic number.

1140155 is a deficient number, since it is larger than the sum of its proper divisors (265237).

1140155 is an equidigital number, since it uses as much as digits as its factorization.

1140155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6205.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 1140155 is about 1067.7804081364. The cubic root of 1140155 is about 104.4691269650.

Adding to 1140155 its reverse (5510411), we get a palindrome (6650566).

It can be divided in two parts, 114015 and 5, that multiplied together give a palindrome (570075).

The spelling of 1140155 in words is "one million, one hundred forty thousand, one hundred fifty-five".