1438121 has 8 divisors (see below), whose sum is σ = 1549824. Its totient is φ = 1330560.

The previous prime is 1438117. The next prime is 1438123. The reversal of 1438121 is 1218341.

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 1438121 - 2² = 1438117 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1438093 and 1438102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438123) 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, 296 + ... + 1721.

It is an arithmetic number, because the mean of its divisors is an integer number (193728).

2^1438121 is an apocalyptic number.

It is an amenable number.

1438121 is a deficient number, since it is larger than the sum of its proper divisors (111703).

1438121 is a wasteful number, since it uses less digits than its factorization.

1438121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071.

The product of its digits is 192, while the sum is 20.

The square root of 1438121 is about 1199.2168277672. The cubic root of 1438121 is about 112.8751852339.

The spelling of 1438121 in words is "one million, four hundred thirty-eight thousand, one hundred twenty-one".