1231195 has 16 divisors (see below), whose sum is σ = 1748160. Its totient is φ = 814464.

The previous prime is 1231193. The next prime is 1231199. The reversal of 1231195 is 5911321.

It is not a de Polignac number, because 1231195 - 2¹ = 1231193 is a prime.

It is a super-2 number, since 2×1231195² = 3031682256050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409 + ... + 1621.

It is an arithmetic number, because the mean of its divisors is an integer number (109260).

2^1231195 is an apocalyptic number.

1231195 is a deficient number, since it is larger than the sum of its proper divisors (516965).

1231195 is a wasteful number, since it uses less digits than its factorization.

1231195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254.

The product of its digits is 270, while the sum is 22.

The square root of 1231195 is about 1109.5922674568. The cubic root of 1231195 is about 107.1788141749.

The spelling of 1231195 in words is "one million, two hundred thirty-one thousand, one hundred ninety-five".