1125877 has 4 divisors (see below), whose sum is σ = 1144396. Its totient is φ = 1107360.

The previous prime is 1125871. The next prime is 1125899. The reversal of 1125877 is 7785211.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 367236 + 758641 = 606^2 + 871^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125877 - 2¹⁵ = 1093109 is a prime.

It is a Duffinian number.

1125877 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125871) 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, 9168 + ... + 9289.

It is an arithmetic number, because the mean of its divisors is an integer number (286099).

2^1125877 is an apocalyptic number.

It is an amenable number.

1125877 is a deficient number, since it is larger than the sum of its proper divisors (18519).

1125877 is an equidigital number, since it uses as much as digits as its factorization.

1125877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18518.

The product of its digits is 3920, while the sum is 31.

The square root of 1125877 is about 1061.0735130046. The cubic root of 1125877 is about 104.0312098146.

It can be divided in two parts, 1125 and 877, that added together give a palindrome (2002).

The spelling of 1125877 in words is "one million, one hundred twenty-five thousand, eight hundred seventy-seven".