1151541171 has 16 divisors (see below), whose sum is σ = 1861077120. Its totient is φ = 697903560.

The previous prime is 1151541163. The next prime is 1151541179. The reversal of 1151541171 is 1711451511.

1151541171 is a `hidden beast` number, since 1 + 1 + 51 + 541 + 1 + 71 = 666.

It is an interprime number because it is at equal distance from previous prime (1151541163) and next prime (1151541179).

It is not a de Polignac number, because 1151541171 - 2³ = 1151541163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1151541179) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1938325 + ... + 1938918.

It is an arithmetic number, because the mean of its divisors is an integer number (116317320).

Almost surely, 2^1151541171 is an apocalyptic number.

1151541171 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1151541171 is a deficient number, since it is larger than the sum of its proper divisors (709535949).

1151541171 is a wasteful number, since it uses less digits than its factorization.

1151541171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3877263 (or 3877257 counting only the distinct ones).

The product of its digits is 700, while the sum is 27.

The square root of 1151541171 is about 33934.3656342652. The cubic root of 1151541171 is about 1048.1573641844.

Adding to 1151541171 its reverse (1711451511), we get a palindrome (2862992682).

The spelling of 1151541171 in words is "one billion, one hundred fifty-one million, five hundred forty-one thousand, one hundred seventy-one".