1359921 has 8 divisors (see below), whose sum is σ = 1892160. Its totient is φ = 867152.

The previous prime is 1359913. The next prime is 1359937. The reversal of 1359921 is 1299531.

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 1359921 - 2³ = 1359913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1359901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9786 + ... + 9923.

It is an arithmetic number, because the mean of its divisors is an integer number (236520).

2^1359921 is an apocalyptic number.

It is an amenable number.

1359921 is a deficient number, since it is larger than the sum of its proper divisors (532239).

1359921 is a wasteful number, since it uses less digits than its factorization.

1359921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19735.

The product of its digits is 2430, while the sum is 30.

The square root of 1359921 is about 1166.1565075066. The cubic root of 1359921 is about 110.7910198337.

The spelling of 1359921 in words is "one million, three hundred fifty-nine thousand, nine hundred twenty-one".