1167211361 has 8 divisors (see below), whose sum is σ = 1201398120. Its totient is φ = 1133163648.

The previous prime is 1167211327. The next prime is 1167211391. The reversal of 1167211361 is 1631127611.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 499299025 + 667912336 = 22345^2 + 25844^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1167211361 is a prime.

It is a super-2 number, since 2×1167211361² = 2724764722494944642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1167211391) 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, 17606 + ... + 51423.

It is an arithmetic number, because the mean of its divisors is an integer number (150174765).

Almost surely, 2^1167211361 is an apocalyptic number.

It is an amenable number.

1167211361 is a deficient number, since it is larger than the sum of its proper divisors (34186759).

1167211361 is an equidigital number, since it uses as much as digits as its factorization.

1167211361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69523.

The product of its digits is 1512, while the sum is 29.

The square root of 1167211361 is about 34164.4751313407. The cubic root of 1167211361 is about 1052.8904067516.

Adding to 1167211361 its reverse (1631127611), we get a palindrome (2798338972).

The spelling of 1167211361 in words is "one billion, one hundred sixty-seven million, two hundred eleven thousand, three hundred sixty-one".