1391093 has 16 divisors (see below), whose sum is σ = 1653696. Its totient is φ = 1155840.

The previous prime is 1391087. The next prime is 1391113. The reversal of 1391093 is 3901931.

It is not a de Polignac number, because 1391093 - 2⁶ = 1391029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391023) 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 15 ways as a sum of consecutive naturals, for example, 7955 + ... + 8127.

It is an arithmetic number, because the mean of its divisors is an integer number (103356).

2^1391093 is an apocalyptic number.

It is an amenable number.

1391093 is a deficient number, since it is larger than the sum of its proper divisors (262603).

1391093 is a wasteful number, since it uses less digits than its factorization.

1391093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 1391093 is about 1179.4460564180. The cubic root of 1391093 is about 111.6311473378.

The spelling of 1391093 in words is "one million, three hundred ninety-one thousand, ninety-three".