1151667171 has 12 divisors (see below), whose sum is σ = 1667494920. Its totient is φ = 765943200.

The previous prime is 1151667137. The next prime is 1151667203. The reversal of 1151667171 is 1717661511.

1151667171 is a `hidden beast` number, since 1 + 1 + 516 + 6 + 71 + 71 = 666.

It is not a de Polignac number, because 1151667171 - 2⁶ = 1151667107 is a prime.

It is a super-4 number, since 4×1151667171⁴ (a number of 37 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1151667131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148930 + ... + 156471.

It is an arithmetic number, because the mean of its divisors is an integer number (138957910).

Almost surely, 2^1151667171 is an apocalyptic number.

1151667171 is a deficient number, since it is larger than the sum of its proper divisors (515827749).

1151667171 is a wasteful number, since it uses less digits than its factorization.

1151667171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305826 (or 305823 counting only the distinct ones).

The product of its digits is 8820, while the sum is 36.

The square root of 1151667171 is about 33936.2221085377. Note that the first 3 decimals coincide. The cubic root of 1151667171 is about 1048.1955920871.

It can be divided in two parts, 11516 and 67171, that added together give a palindrome (78687).

The spelling of 1151667171 in words is "one billion, one hundred fifty-one million, six hundred sixty-seven thousand, one hundred seventy-one".