1391074 has 8 divisors (see below), whose sum is σ = 2096640. Its totient is φ = 692196.

The previous prime is 1391057. The next prime is 1391081. The reversal of 1391074 is 4701931.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1114 + ... + 2005.

It is an arithmetic number, because the mean of its divisors is an integer number (262080).

2^1391074 is an apocalyptic number.

1391074 is a deficient number, since it is larger than the sum of its proper divisors (705566).

1391074 is a wasteful number, since it uses less digits than its factorization.

1391074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 1391074 is about 1179.4380017619. The cubic root of 1391074 is about 111.6306391040.

The spelling of 1391074 in words is "one million, three hundred ninety-one thousand, seventy-four".