1145698172 has 12 divisors (see below), whose sum is σ = 2092144656. Its totient is φ = 547942560.

The previous prime is 1145698163. The next prime is 1145698189. The reversal of 1145698172 is 2718965411.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6226529 + ... + 6226712.

It is an arithmetic number, because the mean of its divisors is an integer number (174345388).

Almost surely, 2^1145698172 is an apocalyptic number.

It is an amenable number.

1145698172 is a deficient number, since it is larger than the sum of its proper divisors (946446484).

1145698172 is a wasteful number, since it uses less digits than its factorization.

1145698172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12453268 (or 12453266 counting only the distinct ones).

The product of its digits is 120960, while the sum is 44.

The square root of 1145698172 is about 33848.1634952326. The cubic root of 1145698172 is about 1046.3815497667.

The spelling of 1145698172 in words is "one billion, one hundred forty-five million, six hundred ninety-eight thousand, one hundred seventy-two".