1341391 has 4 divisors (see below), whose sum is σ = 1348984. Its totient is φ = 1333800.

The previous prime is 1341371. The next prime is 1341409. The reversal of 1341391 is 1931431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1931431 = 43 ⋅44917.

It is a cyclic number.

It is not a de Polignac number, because 1341391 - 2⁵ = 1341359 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1341371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3525 + ... + 3886.

It is an arithmetic number, because the mean of its divisors is an integer number (337246).

2^1341391 is an apocalyptic number.

1341391 is the 733-rd centered pentagonal number.

1341391 is a deficient number, since it is larger than the sum of its proper divisors (7593).

1341391 is an equidigital number, since it uses as much as digits as its factorization.

1341391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7592.

The product of its digits is 324, while the sum is 22.

The square root of 1341391 is about 1158.1843549280. The cubic root of 1341391 is about 110.2855117392.

The spelling of 1341391 in words is "one million, three hundred forty-one thousand, three hundred ninety-one".