1125451142 has 8 divisors (see below), whose sum is σ = 1691025336. Its totient is φ = 561776032.

The previous prime is 1125451121. The next prime is 1125451183. The reversal of 1125451142 is 2411545211.

It is a happy number.

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

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 473288 + ... + 475659.

It is an arithmetic number, because the mean of its divisors is an integer number (211378167).

Almost surely, 2^1125451142 is an apocalyptic number.

1125451142 is a deficient number, since it is larger than the sum of its proper divisors (565574194).

1125451142 is an equidigital number, since it uses as much as digits as its factorization.

1125451142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949542.

The product of its digits is 1600, while the sum is 26.

The square root of 1125451142 is about 33547.7442162659. The cubic root of 1125451142 is about 1040.1809171207.

Adding to 1125451142 its reverse (2411545211), we get a palindrome (3536996353).

The spelling of 1125451142 in words is "one billion, one hundred twenty-five million, four hundred fifty-one thousand, one hundred forty-two".