1181473345 has 32 divisors (see below), whose sum is σ = 1556755200. Its totient is φ = 855546624.

The previous prime is 1181473313. The next prime is 1181473373. The reversal of 1181473345 is 5433741811.

It is a cyclic number.

It is not a de Polignac number, because 1181473345 - 2⁵ = 1181473313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 728946 + ... + 730564.

It is an arithmetic number, because the mean of its divisors is an integer number (48648600).

Almost surely, 2^1181473345 is an apocalyptic number.

It is an amenable number.

1181473345 is a deficient number, since it is larger than the sum of its proper divisors (375281855).

1181473345 is a wasteful number, since it uses less digits than its factorization.

1181473345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849.

The product of its digits is 40320, while the sum is 37.

The square root of 1181473345 is about 34372.5667502443. The cubic root of 1181473345 is about 1057.1614290582.

The spelling of 1181473345 in words is "one billion, one hundred eighty-one million, four hundred seventy-three thousand, three hundred forty-five".