1380321173 has 24 divisors (see below), whose sum is σ = 1749982080. Its totient is φ = 1065636000.

The previous prime is 1380321167. The next prime is 1380321179. The reversal of 1380321173 is 3711230831.

It is an interprime number because it is at equal distance from previous prime (1380321167) and next prime (1380321179).

It is not a de Polignac number, because 1380321173 - 2²⁰ = 1379272597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380321179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84848 + ... + 99798.

It is an arithmetic number, because the mean of its divisors is an integer number (72915920).

Almost surely, 2^1380321173 is an apocalyptic number.

It is an amenable number.

1380321173 is a deficient number, since it is larger than the sum of its proper divisors (369660907).

1380321173 is a wasteful number, since it uses less digits than its factorization.

1380321173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15089 (or 15078 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1380321173 is about 37152.6738337902. The cubic root of 1380321173 is about 1113.4226452449.

The spelling of 1380321173 in words is "one billion, three hundred eighty million, three hundred twenty-one thousand, one hundred seventy-three".