1396181 has 4 divisors (see below), whose sum is σ = 1409100. Its totient is φ = 1383264.

The previous prime is 1396141. The next prime is 1396183. The reversal of 1396181 is 1816931.

It is a happy number.

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 707281 + 688900 = 841^2 + 830^2 .

It is a cyclic number.

It is not a de Polignac number, because 1396181 - 2¹⁴ = 1379797 is a prime.

It is a super-2 number, since 2×1396181² = 3898642769522, 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 (1396183) 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, 6296 + ... + 6513.

It is an arithmetic number, because the mean of its divisors is an integer number (352275).

2^1396181 is an apocalyptic number.

It is an amenable number.

1396181 is a deficient number, since it is larger than the sum of its proper divisors (12919).

1396181 is a wasteful number, since it uses less digits than its factorization.

1396181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12918.

The product of its digits is 1296, while the sum is 29.

The square root of 1396181 is about 1181.6010324979. The cubic root of 1396181 is about 111.7670807871.

The spelling of 1396181 in words is "one million, three hundred ninety-six thousand, one hundred eighty-one".