1396139 has 8 divisors (see below), whose sum is σ = 1481040. Its totient is φ = 1312416.

The previous prime is 1396127. The next prime is 1396141. The reversal of 1396139 is 9316931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1396139 - 2⁸ = 1395883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1396189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3557 + ... + 3929.

It is an arithmetic number, because the mean of its divisors is an integer number (185130).

2^1396139 is an apocalyptic number.

1396139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1396139 is a deficient number, since it is larger than the sum of its proper divisors (84901).

1396139 is a wasteful number, since it uses less digits than its factorization.

1396139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589.

The product of its digits is 4374, while the sum is 32.

The square root of 1396139 is about 1181.5832598679. The cubic root of 1396139 is about 111.7659600478.

The spelling of 1396139 in words is "one million, three hundred ninety-six thousand, one hundred thirty-nine".