1152399 has 4 divisors (see below), whose sum is σ = 1536536. Its totient is φ = 768264.

The previous prime is 1152397. The next prime is 1152419. The reversal of 1152399 is 9932511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9932511 = 3 ⋅3310837.

It is not a de Polignac number, because 1152399 - 2¹ = 1152397 is a prime.

It is a D-number.

It is a Duffinian number.

1152399 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192064 + ... + 192069.

It is an arithmetic number, because the mean of its divisors is an integer number (384134).

2^1152399 is an apocalyptic number.

1152399 is a deficient number, since it is larger than the sum of its proper divisors (384137).

1152399 is an equidigital number, since it uses as much as digits as its factorization.

1152399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384136.

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

The square root of 1152399 is about 1073.4984862588. The cubic root of 1152399 is about 104.8417571007.

It can be divided in two parts, 1152 and 399, that added together give a palindrome (1551).

The spelling of 1152399 in words is "one million, one hundred fifty-two thousand, three hundred ninety-nine".