1061191 has 4 divisors (see below), whose sum is σ = 1123632. Its totient is φ = 998752.

The previous prime is 1061189. The next prime is 1061227. The reversal of 1061191 is 1911601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1911601 = 577 ⋅3313.

It is a cyclic number.

It is not a de Polignac number, because 1061191 - 2¹ = 1061189 is a prime.

It is a super-2 number, since 2×1061191² = 2252252676962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061101) 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, 31195 + ... + 31228.

It is an arithmetic number, because the mean of its divisors is an integer number (280908).

2^1061191 is an apocalyptic number.

1061191 is a deficient number, since it is larger than the sum of its proper divisors (62441).

1061191 is an equidigital number, since it uses as much as digits as its factorization.

1061191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62440.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 1061191 is about 1030.1412524504. The cubic root of 1061191 is about 101.9994553348. Note that the first 3 decimals are identical.

Adding to 1061191 its reverse (1911601), we get a palindrome (2972792).

The spelling of 1061191 in words is "one million, sixty-one thousand, one hundred ninety-one".