1167720341 has 4 divisors (see below), whose sum is σ = 1194876672. Its totient is φ = 1140564012.

The previous prime is 1167720331. The next prime is 1167720343. The reversal of 1167720341 is 1430277611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1167720341 - 2¹⁰ = 1167719317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1167720298 and 1167720307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1167720343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13578101 + ... + 13578186.

It is an arithmetic number, because the mean of its divisors is an integer number (298719168).

Almost surely, 2^1167720341 is an apocalyptic number.

It is an amenable number.

1167720341 is a deficient number, since it is larger than the sum of its proper divisors (27156331).

1167720341 is an equidigital number, since it uses as much as digits as its factorization.

1167720341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27156330.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 1167720341 is about 34171.9232850596. The cubic root of 1167720341 is about 1053.0434273899.

Adding to 1167720341 its reverse (1430277611), we get a palindrome (2597997952).

The spelling of 1167720341 in words is "one billion, one hundred sixty-seven million, seven hundred twenty thousand, three hundred forty-one".