1051191 has 8 divisors (see below), whose sum is σ = 1557360. Its totient is φ = 700776.

The previous prime is 1051181. The next prime is 1051247. The reversal of 1051191 is 1911501.

It is not a de Polignac number, because 1051191 - 2¹⁰ = 1050167 is a prime.

It is a super-2 number, since 2×1051191² = 2210005036962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19440 + ... + 19493.

It is an arithmetic number, because the mean of its divisors is an integer number (194670).

2^1051191 is an apocalyptic number.

1051191 is a deficient number, since it is larger than the sum of its proper divisors (506169).

1051191 is an equidigital number, since it uses as much as digits as its factorization.

1051191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38942 (or 38936 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 18.

The square root of 1051191 is about 1025.2760603857. The cubic root of 1051191 is about 101.6780506229.

Adding to 1051191 its reverse (1911501), we get a palindrome (2962692).

It can be divided in two parts, 105 and 1191, that added together give a 4-th power (1296 = 6⁴).

The spelling of 1051191 in words is "one million, fifty-one thousand, one hundred ninety-one".