1125771 has 4 divisors (see below), whose sum is σ = 1501032. Its totient is φ = 750512.

The previous prime is 1125767. The next prime is 1125793. The reversal of 1125771 is 1775211.

It is a happy number.

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 1125771 - 2² = 1125767 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1125701) 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, 187626 + ... + 187631.

It is an arithmetic number, because the mean of its divisors is an integer number (375258).

2^1125771 is an apocalyptic number.

1125771 is a deficient number, since it is larger than the sum of its proper divisors (375261).

1125771 is an equidigital number, since it uses as much as digits as its factorization.

1125771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375260.

The product of its digits is 490, while the sum is 24.

The square root of 1125771 is about 1061.0235624151. The cubic root of 1125771 is about 104.0279449067.

The spelling of 1125771 in words is "one million, one hundred twenty-five thousand, seven hundred seventy-one".