1125242042 has 8 divisors (see below), whose sum is σ = 1689317856. Its totient is φ = 562136092.

The previous prime is 1125242033. The next prime is 1125242047. The reversal of 1125242042 is 2402425211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1125241999 and 1125242017.

It is not an unprimeable number, because it can be changed into a prime (1125242047) 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, 239558 + ... + 244209.

It is an arithmetic number, because the mean of its divisors is an integer number (211164732).

Almost surely, 2^1125242042 is an apocalyptic number.

1125242042 is a deficient number, since it is larger than the sum of its proper divisors (564075814).

1125242042 is a wasteful number, since it uses less digits than its factorization.

1125242042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484932.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1125242042 is about 33544.6276175485. The cubic root of 1125242042 is about 1040.1164939772.

Adding to 1125242042 its reverse (2402425211), we get a palindrome (3527667253).

The spelling of 1125242042 in words is "one billion, one hundred twenty-five million, two hundred forty-two thousand, forty-two".