1389201 has 24 divisors (see below), whose sum is σ = 2106720. Its totient is φ = 813120.

The previous prime is 1389191. The next prime is 1389209. The reversal of 1389201 is 1029831.

It is not a de Polignac number, because 1389201 - 2⁵ = 1389169 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1389209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15565 + ... + 15653.

It is an arithmetic number, because the mean of its divisors is an integer number (87780).

2^1389201 is an apocalyptic number.

1389201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1389201 is a deficient number, since it is larger than the sum of its proper divisors (717519).

1389201 is a wasteful number, since it uses less digits than its factorization.

1389201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1389201 is about 1178.6437120691. The cubic root of 1389201 is about 111.5805152195.

It can be divided in two parts, 138 and 9201, that added together give a palindrome (9339).

The spelling of 1389201 in words is "one million, three hundred eighty-nine thousand, two hundred one".