1125578 has 4 divisors (see below), whose sum is σ = 1688370. Its totient is φ = 562788.

The previous prime is 1125571. The next prime is 1125581. The reversal of 1125578 is 8755211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8755211 = 953 ⋅9187.

It can be written as a sum of positive squares in only one way, i.e., 588289 + 537289 = 767^2 + 733^2 .

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1125578.

It is not an unprimeable number, because it can be changed into a prime (1125571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281393 + ... + 281396.

2^1125578 is an apocalyptic number.

1125578 is a deficient number, since it is larger than the sum of its proper divisors (562792).

1125578 is an equidigital number, since it uses as much as digits as its factorization.

1125578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562791.

The product of its digits is 2800, while the sum is 29.

The square root of 1125578 is about 1060.9326086043. The cubic root of 1125578 is about 104.0219997838.

The spelling of 1125578 in words is "one million, one hundred twenty-five thousand, five hundred seventy-eight".