1151211167 has 4 divisors (see below), whose sum is σ = 1156238520. Its totient is φ = 1146183816.

The previous prime is 1151211163. The next prime is 1151211221. The reversal of 1151211167 is 7611121511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1151211167 - 2² = 1151211163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151211163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2513333 + ... + 2513790.

It is an arithmetic number, because the mean of its divisors is an integer number (289059630).

Almost surely, 2^1151211167 is an apocalyptic number.

1151211167 is a deficient number, since it is larger than the sum of its proper divisors (5027353).

1151211167 is an equidigital number, since it uses as much as digits as its factorization.

1151211167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5027352.

The product of its digits is 420, while the sum is 26.

The square root of 1151211167 is about 33929.5028993942. The cubic root of 1151211167 is about 1048.0572290558.

Adding to 1151211167 its reverse (7611121511), we get a palindrome (8762332678).

The spelling of 1151211167 in words is "one billion, one hundred fifty-one million, two hundred eleven thousand, one hundred sixty-seven".