1369381 has 4 divisors (see below), whose sum is σ = 1474732. Its totient is φ = 1264032.

The previous prime is 1369373. The next prime is 1369391. The reversal of 1369381 is 1839631.

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

It can be written as a sum of positive squares in 2 ways, for example, as 872356 + 497025 = 934^2 + 705^2 .

It is a cyclic number.

It is not a de Polignac number, because 1369381 - 2³ = 1369373 is a prime.

It is a super-2 number, since 2×1369381² = 3750408646322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1369321) 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, 52656 + ... + 52681.

It is an arithmetic number, because the mean of its divisors is an integer number (368683).

2^1369381 is an apocalyptic number.

It is an amenable number.

1369381 is a deficient number, since it is larger than the sum of its proper divisors (105351).

1369381 is a wasteful number, since it uses less digits than its factorization.

1369381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105350.

The product of its digits is 3888, while the sum is 31.

The square root of 1369381 is about 1170.2055375019. The cubic root of 1369381 is about 111.0473244625.

The spelling of 1369381 in words is "one million, three hundred sixty-nine thousand, three hundred eighty-one".