1125777 has 4 divisors (see below), whose sum is σ = 1501040. Its totient is φ = 750516.

The previous prime is 1125767. The next prime is 1125793. The reversal of 1125777 is 7775211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7775211 = 3 ⋅2591737.

It is not a de Polignac number, because 1125777 - 2⁶ = 1125713 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1125767) 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, 187627 + ... + 187632.

It is an arithmetic number, because the mean of its divisors is an integer number (375260).

2^1125777 is an apocalyptic number.

It is an amenable number.

1125777 is a deficient number, since it is larger than the sum of its proper divisors (375263).

1125777 is an equidigital number, since it uses as much as digits as its factorization.

1125777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375262.

The product of its digits is 3430, while the sum is 30.

The square root of 1125777 is about 1061.0263898697. The cubic root of 1125777 is about 104.0281297183.

The spelling of 1125777 in words is "one million, one hundred twenty-five thousand, seven hundred seventy-seven".