1123899 has 16 divisors (see below), whose sum is σ = 1731840. Its totient is φ = 635040.

The previous prime is 1123897. The next prime is 1123901. The reversal of 1123899 is 9983211.

It is an interprime number because it is at equal distance from previous prime (1123897) and next prime (1123901).

It is not a de Polignac number, because 1123899 - 2¹ = 1123897 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1123897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2044 + ... + 2534.

It is an arithmetic number, because the mean of its divisors is an integer number (108240).

2^1123899 is an apocalyptic number.

1123899 is a deficient number, since it is larger than the sum of its proper divisors (607941).

1123899 is a wasteful number, since it uses less digits than its factorization.

1123899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610.

The product of its digits is 3888, while the sum is 33.

The square root of 1123899 is about 1060.1410283542. The cubic root of 1123899 is about 103.9702516000.

The spelling of 1123899 in words is "one million, one hundred twenty-three thousand, eight hundred ninety-nine".