1125239 has 4 divisors (see below), whose sum is σ = 1130424. Its totient is φ = 1120056.

The previous prime is 1125221. The next prime is 1125253. The reversal of 1125239 is 9325211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1125239 - 2⁸ = 1124983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125209) 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, 2252 + ... + 2705.

It is an arithmetic number, because the mean of its divisors is an integer number (282606).

2^1125239 is an apocalyptic number.

1125239 is a deficient number, since it is larger than the sum of its proper divisors (5185).

1125239 is an equidigital number, since it uses as much as digits as its factorization.

1125239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5184.

The product of its digits is 540, while the sum is 23.

The square root of 1125239 is about 1060.7728314771. The cubic root of 1125239 is about 104.0115556686.

The spelling of 1125239 in words is "one million, one hundred twenty-five thousand, two hundred thirty-nine".