1151743172 has 12 divisors (see below), whose sum is σ = 2020341036. Its totient is φ = 574502880.

The previous prime is 1151743169. The next prime is 1151743181. The reversal of 1151743172 is 2713471511.

It can be written as a sum of positive squares in 2 ways, for example, as 612760516 + 538982656 = 24754^2 + 23216^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340283 + ... + 343650.

It is an arithmetic number, because the mean of its divisors is an integer number (168361753).

Almost surely, 2^1151743172 is an apocalyptic number.

It is an amenable number.

1151743172 is a deficient number, since it is larger than the sum of its proper divisors (868597864).

1151743172 is a wasteful number, since it uses less digits than its factorization.

1151743172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684358 (or 684356 counting only the distinct ones).

The product of its digits is 5880, while the sum is 32.

The square root of 1151743172 is about 33937.3418523019. The cubic root of 1151743172 is about 1048.2186491424.

The spelling of 1151743172 in words is "one billion, one hundred fifty-one million, seven hundred forty-three thousand, one hundred seventy-two".