1148389 has 4 divisors (see below), whose sum is σ = 1252800. Its totient is φ = 1043980.

The previous prime is 1148387. The next prime is 1148437. The reversal of 1148389 is 9838411.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1148389 - 2¹ = 1148387 is a prime.

It is a Duffinian number.

1148389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148387) 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, 52189 + ... + 52210.

It is an arithmetic number, because the mean of its divisors is an integer number (313200).

2^1148389 is an apocalyptic number.

It is an amenable number.

1148389 is a deficient number, since it is larger than the sum of its proper divisors (104411).

1148389 is a wasteful number, since it uses less digits than its factorization.

1148389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104410.

The product of its digits is 6912, while the sum is 34.

The square root of 1148389 is about 1071.6291336092. The cubic root of 1148389 is about 104.7200099077.

It can be divided in two parts, 11 and 48389, that added together give a square (48400 = 220²).

The spelling of 1148389 in words is "one million, one hundred forty-eight thousand, three hundred eighty-nine".