1161228667 has 2 divisors, whose sum is σ = 1161228668. Its totient is φ = 1161228666.

The previous prime is 1161228637. The next prime is 1161228709. The reversal of 1161228667 is 7668221611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1161228667 - 2¹⁵ = 1161195899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1161228637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 580614333 + 580614334.

It is an arithmetic number, because the mean of its divisors is an integer number (580614334).

Almost surely, 2^1161228667 is an apocalyptic number.

1161228667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161228667 is an equidigital number, since it uses as much as digits as its factorization.

1161228667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 40.

The square root of 1161228667 is about 34076.8054107189. The cubic root of 1161228667 is about 1051.0884154403.

The spelling of 1161228667 in words is "one billion, one hundred sixty-one million, two hundred twenty-eight thousand, six hundred sixty-seven".