1125012006 has 24 divisors (see below), whose sum is σ = 2441832120. Its totient is φ = 374341536.

The previous prime is 1125011977. The next prime is 1125012019. The reversal of 1125012006 is 6002105211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1125012006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44680 + ... + 65163.

It is an arithmetic number, because the mean of its divisors is an integer number (101743005).

Almost surely, 2^1125012006 is an apocalyptic number.

1125012006 is an abundant number, since it is smaller than the sum of its proper divisors (1316820114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1125012006 is a wasteful number, since it uses less digits than its factorization.

1125012006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110420 (or 110417 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1125012006 is about 33541.1986369003. The cubic root of 1125012006 is about 1040.0456112886.

Adding to 1125012006 its reverse (6002105211), we get a palindrome (7127117217).

The spelling of 1125012006 in words is "one billion, one hundred twenty-five million, twelve thousand, six".