1338161 has 8 divisors (see below), whose sum is σ = 1468800. Its totient is φ = 1209040.

The previous prime is 1338109. The next prime is 1338167. The reversal of 1338161 is 1618331.

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 1338161 - 2¹⁸ = 1076017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1338167) 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, 2375 + ... + 2883.

It is an arithmetic number, because the mean of its divisors is an integer number (183600).

2^1338161 is an apocalyptic number.

1338161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1338161 is a deficient number, since it is larger than the sum of its proper divisors (130639).

1338161 is a wasteful number, since it uses less digits than its factorization.

1338161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759.

The product of its digits is 432, while the sum is 23.

The square root of 1338161 is about 1156.7890905433. The cubic root of 1338161 is about 110.1969199943.

Multiplying 1338161 by its sum of digits (23), we get a palindrome (30777703).

The spelling of 1338161 in words is "one million, three hundred thirty-eight thousand, one hundred sixty-one".