1173845641 has 8 divisors (see below), whose sum is σ = 1232400960. Its totient is φ = 1115916912.

The previous prime is 1173845581. The next prime is 1173845657. The reversal of 1173845641 is 1465483711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1173845641 - 2⁷ = 1173845513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1173845594 and 1173845603.

It is not an unprimeable number, because it can be changed into a prime (1173845671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152806 + ... + 160303.

It is an arithmetic number, because the mean of its divisors is an integer number (154050120).

Almost surely, 2^1173845641 is an apocalyptic number.

It is an amenable number.

1173845641 is a deficient number, since it is larger than the sum of its proper divisors (58555319).

1173845641 is a wasteful number, since it uses less digits than its factorization.

1173845641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313295.

The product of its digits is 80640, while the sum is 40.

The square root of 1173845641 is about 34261.4308078340. The cubic root of 1173845641 is about 1054.8814706276.

The spelling of 1173845641 in words is "one billion, one hundred seventy-three million, eight hundred forty-five thousand, six hundred forty-one".