1125121726 has 8 divisors (see below), whose sum is σ = 1687827024. Its totient is φ = 562512720.

The previous prime is 1125121691. The next prime is 1125121741. The reversal of 1125121726 is 6271215211.

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 = 1125121694 and 1125121703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25831 + ... + 54013.

It is an arithmetic number, because the mean of its divisors is an integer number (210978378).

Almost surely, 2^1125121726 is an apocalyptic number.

1125121726 is a deficient number, since it is larger than the sum of its proper divisors (562705298).

1125121726 is a wasteful number, since it uses less digits than its factorization.

1125121726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48146.

The product of its digits is 1680, while the sum is 28.

The square root of 1125121726 is about 33542.8341974855. The cubic root of 1125121726 is about 1040.0794213262.

Adding to 1125121726 its reverse (6271215211), we get a palindrome (7396336937).

The spelling of 1125121726 in words is "one billion, one hundred twenty-five million, one hundred twenty-one thousand, seven hundred twenty-six".