1125242 has 4 divisors (see below), whose sum is σ = 1687866.
Its totient is φ = 562620.
The previous prime is 1125221. The next prime is 1125253. The reversal of 1125242 is 2425211.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2425211 = 151 ⋅16061.
It can be written as a sum of positive squares in only one way, i.e., 579121 + 546121 = 761^2 + 739^2
It is a self number, because there is not a number n which added to its sum of digits gives 1125242.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281309 + ... + 281312.
21125242 is an apocalyptic number.
1125242 is a deficient number, since it is larger than the sum of its proper divisors (562624).
1125242 is an equidigital number, since it uses as much as digits as its factorization.
1125242 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 562623.
The product of its digits is 160, while the sum is 17.
The square root of 1125242 is about 1060.7742455395.
The cubic root of 1125242 is about 104.0116481036.
The spelling of 1125242 in words is "one million, one hundred twenty-five thousand, two hundred forty-two".