1347381 has 16 divisors (see below), whose sum is σ = 2281600. Its totient is φ = 769824.

The previous prime is 1347377. The next prime is 1347389. The reversal of 1347381 is 1837431.

It is not a de Polignac number, because 1347381 - 2² = 1347377 is a prime.

It is a super-2 number, since 2×1347381² = 3630871118322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1347389) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3376 + ... + 3753.

It is an arithmetic number, because the mean of its divisors is an integer number (142600).

2^1347381 is an apocalyptic number.

It is an amenable number.

1347381 is a deficient number, since it is larger than the sum of its proper divisors (934219).

1347381 is an equidigital number, since it uses as much as digits as its factorization.

1347381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7145 (or 7139 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 1347381 is about 1160.7674185641. The cubic root of 1347381 is about 110.4494284809.

It can be divided in two parts, 1347 and 381, that added together give a cube (1728 = 12³).

The spelling of 1347381 in words is "one million, three hundred forty-seven thousand, three hundred eighty-one".