1178018945 has 16 divisors (see below), whose sum is σ = 1476012672. Its totient is φ = 900873600.

The previous prime is 1178018909. The next prime is 1178018953. The reversal of 1178018945 is 5498108711.

It is a happy number.

It is not a de Polignac number, because 1178018945 - 2²⁰ = 1176970369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1178018896 and 1178018905.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326069 + ... + 329661.

It is an arithmetic number, because the mean of its divisors is an integer number (92250792).

Almost surely, 2^1178018945 is an apocalyptic number.

It is an amenable number.

1178018945 is a deficient number, since it is larger than the sum of its proper divisors (297993727).

1178018945 is a wasteful number, since it uses less digits than its factorization.

1178018945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6472.

The product of its (nonzero) digits is 80640, while the sum is 44.

The square root of 1178018945 is about 34322.2805914759. The cubic root of 1178018945 is about 1056.1301112949.

The spelling of 1178018945 in words is "one billion, one hundred seventy-eight million, eighteen thousand, nine hundred forty-five".