1154605172 has 48 divisors (see below), whose sum is σ = 2346960000. Its totient is φ = 486808704.

The previous prime is 1154605163. The next prime is 1154605189. The reversal of 1154605172 is 2715064511.

It is a super-2 number, since 2×1154605172² = 2666226206418299168, which contains 22 as substring.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 453479 + ... + 456017.

It is an arithmetic number, because the mean of its divisors is an integer number (48895000).

Almost surely, 2^1154605172 is an apocalyptic number.

It is an amenable number.

1154605172 is an abundant number, since it is smaller than the sum of its proper divisors (1192354828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1154605172 is a wasteful number, since it uses less digits than its factorization.

1154605172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808 (or 2806 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 1154605172 is about 33979.4816323028. The cubic root of 1154605172 is about 1049.0861805912.

Adding to 1154605172 its reverse (2715064511), we get a palindrome (3869669683).

The spelling of 1154605172 in words is "one billion, one hundred fifty-four million, six hundred five thousand, one hundred seventy-two".