1385121 has 4 divisors (see below), whose sum is σ = 1846832. Its totient is φ = 923412.

The previous prime is 1385117. The next prime is 1385147. The reversal of 1385121 is 1215831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1215831 = 3 ⋅405277.

It is not a de Polignac number, because 1385121 - 2² = 1385117 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1385101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230851 + ... + 230856.

It is an arithmetic number, because the mean of its divisors is an integer number (461708).

2^1385121 is an apocalyptic number.

It is an amenable number.

1385121 is a deficient number, since it is larger than the sum of its proper divisors (461711).

1385121 is an equidigital number, since it uses as much as digits as its factorization.

1385121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461710.

The product of its digits is 240, while the sum is 21.

The square root of 1385121 is about 1176.9116364451. The cubic root of 1385121 is about 111.4711730126.

The spelling of 1385121 in words is "one million, three hundred eighty-five thousand, one hundred twenty-one".