1365121 has 8 divisors (see below), whose sum is σ = 1425600. Its totient is φ = 1306032.

The previous prime is 1365109. The next prime is 1365127. The reversal of 1365121 is 1215631.

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 1365121 - 2⁹ = 1364609 is a prime.

It is a Duffinian number.

1365121 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1365127) 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, 1980 + ... + 2578.

It is an arithmetic number, because the mean of its divisors is an integer number (178200).

2^1365121 is an apocalyptic number.

It is an amenable number.

1365121 is a deficient number, since it is larger than the sum of its proper divisors (60479).

1365121 is an equidigital number, since it uses as much as digits as its factorization.

1365121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695.

The product of its digits is 180, while the sum is 19.

The square root of 1365121 is about 1168.3839266269. The cubic root of 1365121 is about 110.9320526718.

The spelling of 1365121 in words is "one million, three hundred sixty-five thousand, one hundred twenty-one".