1148239 has 4 divisors (see below), whose sum is σ = 1152040. Its totient is φ = 1144440.

The previous prime is 1148219. The next prime is 1148249. The reversal of 1148239 is 9328411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9328411 = 19 ⋅490969.

It is a cyclic number.

It is not a de Polignac number, because 1148239 - 2⁷ = 1148111 is a prime.

It is a super-2 number, since 2×1148239² = 2636905602242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148219) 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, 1404 + ... + 2065.

It is an arithmetic number, because the mean of its divisors is an integer number (288010).

2^1148239 is an apocalyptic number.

1148239 is a deficient number, since it is larger than the sum of its proper divisors (3801).

1148239 is an equidigital number, since it uses as much as digits as its factorization.

1148239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800.

The product of its digits is 1728, while the sum is 28.

The square root of 1148239 is about 1071.5591444246. The cubic root of 1148239 is about 104.7154502781.

It can be divided in two parts, 1 and 148239, that added together give a triangular number (148240 = T₅₄₄).

The spelling of 1148239 in words is "one million, one hundred forty-eight thousand, two hundred thirty-nine".