1151667172 has 6 divisors (see below), whose sum is σ = 2015417558. Its totient is φ = 575833584.

The previous prime is 1151667137. The next prime is 1151667203. The reversal of 1151667172 is 2717661511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1143521856 + 8145316 = 33816^2 + 2854^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143958393 + ... + 143958400.

Almost surely, 2^1151667172 is an apocalyptic number.

It is an amenable number.

1151667172 is a deficient number, since it is larger than the sum of its proper divisors (863750386).

1151667172 is a wasteful number, since it uses less digits than its factorization.

1151667172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287916797 (or 287916795 counting only the distinct ones).

The product of its digits is 17640, while the sum is 37.

The square root of 1151667172 is about 33936.2221232712. Note that the first 3 decimals coincide. The cubic root of 1151667172 is about 1048.1955923905.

The spelling of 1151667172 in words is "one billion, one hundred fifty-one million, six hundred sixty-seven thousand, one hundred seventy-two".