1197155 has 4 divisors (see below), whose sum is σ = 1436592. Its totient is φ = 957720.

The previous prime is 1197121. The next prime is 1197167. The reversal of 1197155 is 5517911.

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

It is not a de Polignac number, because 1197155 - 2¹⁴ = 1180771 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, 119711 + ... + 119720.

It is an arithmetic number, because the mean of its divisors is an integer number (359148).

2^1197155 is an apocalyptic number.

1197155 is a deficient number, since it is larger than the sum of its proper divisors (239437).

1197155 is an equidigital number, since it uses as much as digits as its factorization.

1197155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239436.

The product of its digits is 1575, while the sum is 29.

The square root of 1197155 is about 1094.1457855332. The cubic root of 1197155 is about 106.1818109183.

The spelling of 1197155 in words is "one million, one hundred ninety-seven thousand, one hundred fifty-five".