1393172 has 12 divisors (see below), whose sum is σ = 2659776. Its totient is φ = 633240.

The previous prime is 1393159. The next prime is 1393181. The reversal of 1393172 is 2713931.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15788 + ... + 15875.

It is an arithmetic number, because the mean of its divisors is an integer number (221648).

2^1393172 is an apocalyptic number.

It is an amenable number.

1393172 is a deficient number, since it is larger than the sum of its proper divisors (1266604).

1393172 is a wasteful number, since it uses less digits than its factorization.

1393172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31678 (or 31676 counting only the distinct ones).

The product of its digits is 1134, while the sum is 26.

The square root of 1393172 is about 1180.3270733149. The cubic root of 1393172 is about 111.6867308814.

The spelling of 1393172 in words is "one million, three hundred ninety-three thousand, one hundred seventy-two".