1391354 has 4 divisors (see below), whose sum is σ = 2087034. Its totient is φ = 695676.

The previous prime is 1391353. The next prime is 1391363. The reversal of 1391354 is 4531931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 714025 + 677329 = 845^2 + 823^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1391353) 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 as a sum of consecutive naturals, namely, 347837 + ... + 347840.

2^1391354 is an apocalyptic number.

1391354 is a deficient number, since it is larger than the sum of its proper divisors (695680).

1391354 is an equidigital number, since it uses as much as digits as its factorization.

1391354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695679.

The product of its digits is 1620, while the sum is 26.

The square root of 1391354 is about 1179.5566963906. The cubic root of 1391354 is about 111.6381283969.

The spelling of 1391354 in words is "one million, three hundred ninety-one thousand, three hundred fifty-four".