1124139 has 4 divisors (see below), whose sum is σ = 1498856. Its totient is φ = 749424.

The previous prime is 1124131. The next prime is 1124141. The reversal of 1124139 is 9314211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9314211 = 3 ⋅3104737.

It is not a de Polignac number, because 1124139 - 2³ = 1124131 is a prime.

It is a D-number.

It is a Duffinian number.

1124139 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1124131) 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, 187354 + ... + 187359.

It is an arithmetic number, because the mean of its divisors is an integer number (374714).

2^1124139 is an apocalyptic number.

1124139 is a deficient number, since it is larger than the sum of its proper divisors (374717).

1124139 is an equidigital number, since it uses as much as digits as its factorization.

1124139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374716.

The product of its digits is 216, while the sum is 21.

The square root of 1124139 is about 1060.2542147995. The cubic root of 1124139 is about 103.9776517562.

The spelling of 1124139 in words is "one million, one hundred twenty-four thousand, one hundred thirty-nine".