1167261241 has 4 divisors (see below), whose sum is σ = 1189285092. Its totient is φ = 1145237392.

The previous prime is 1167261127. The next prime is 1167261253. The reversal of 1167261241 is 1421627611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1421627611 = 3659 ⋅388529.

It can be written as a sum of positive squares in 2 ways, for example, as 735494400 + 431766841 = 27120^2 + 20779^2 .

It is a cyclic number.

It is not a de Polignac number, because 1167261241 - 2²¹ = 1165164089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1167261041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11011846 + ... + 11011951.

It is an arithmetic number, because the mean of its divisors is an integer number (297321273).

Almost surely, 2^1167261241 is an apocalyptic number.

It is an amenable number.

1167261241 is a deficient number, since it is larger than the sum of its proper divisors (22023851).

1167261241 is an equidigital number, since it uses as much as digits as its factorization.

1167261241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22023850.

The product of its digits is 4032, while the sum is 31.

The square root of 1167261241 is about 34165.2051215853. The cubic root of 1167261241 is about 1052.9054047280.

Adding to 1167261241 its reverse (1421627611), we get a palindrome (2588888852).

The spelling of 1167261241 in words is "one billion, one hundred sixty-seven million, two hundred sixty-one thousand, two hundred forty-one".