1190155 has 4 divisors (see below), whose sum is σ = 1428192. Its totient is φ = 952120.

The previous prime is 1190149. The next prime is 1190159. The reversal of 1190155 is 5510911.

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

It is not a de Polignac number, because 1190155 - 2¹³ = 1181963 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1190159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119011 + ... + 119020.

It is an arithmetic number, because the mean of its divisors is an integer number (357048).

2^1190155 is an apocalyptic number.

1190155 is a deficient number, since it is larger than the sum of its proper divisors (238037).

1190155 is an equidigital number, since it uses as much as digits as its factorization.

1190155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238036.

The product of its (nonzero) digits is 225, while the sum is 22.

The square root of 1190155 is about 1090.9422532838. The cubic root of 1190155 is about 105.9744509446.

The spelling of 1190155 in words is "one million, one hundred ninety thousand, one hundred fifty-five".