1197955 has 16 divisors (see below), whose sum is σ = 1638144. Its totient is φ = 832480.

The previous prime is 1197953. The next prime is 1197971. The reversal of 1197955 is 5597911.

It is a happy number.

It is not a de Polignac number, because 1197955 - 2¹ = 1197953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1197953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 792 + ... + 1738.

It is an arithmetic number, because the mean of its divisors is an integer number (102384).

2^1197955 is an apocalyptic number.

1197955 is a deficient number, since it is larger than the sum of its proper divisors (440189).

1197955 is a wasteful number, since it uses less digits than its factorization.

1197955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986.

The product of its digits is 14175, while the sum is 37.

The square root of 1197955 is about 1094.5113064743. The cubic root of 1197955 is about 106.2054576847.

The spelling of 1197955 in words is "one million, one hundred ninety-seven thousand, nine hundred fifty-five".