1167250161 has 128 divisors (see below), whose sum is σ = 2205941760. Its totient is φ = 530323200.

The previous prime is 1167250151. The next prime is 1167250163. The reversal of 1167250161 is 1610527611.

It is not a de Polignac number, because 1167250161 - 2¹⁷ = 1167119089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1167250163) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3129171 + ... + 3129543.

It is an arithmetic number, because the mean of its divisors is an integer number (17233920).

Almost surely, 2^1167250161 is an apocalyptic number.

1167250161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1167250161 is a deficient number, since it is larger than the sum of its proper divisors (1038691599).

1167250161 is a wasteful number, since it uses less digits than its factorization.

1167250161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 1167250161 is about 34165.0429679226. The cubic root of 1167250161 is about 1052.9020732177.

Adding to 1167250161 its reverse (1610527611), we get a palindrome (2777777772).

The spelling of 1167250161 in words is "one billion, one hundred sixty-seven million, two hundred fifty thousand, one hundred sixty-one".