1011125806 has 8 divisors (see below), whose sum is σ = 1517522544. Its totient is φ = 505284960.

The previous prime is 1011125783. The next prime is 1011125809. The reversal of 1011125806 is 6085211101.

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 not an unprimeable number, because it can be changed into a prime (1011125809) 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, 134395 + ... + 141718.

It is an arithmetic number, because the mean of its divisors is an integer number (189690318).

Almost surely, 2^1011125806 is an apocalyptic number.

1011125806 is a deficient number, since it is larger than the sum of its proper divisors (506396738).

1011125806 is a wasteful number, since it uses less digits than its factorization.

1011125806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277946.

The product of its (nonzero) digits is 480, while the sum is 25.

The square root of 1011125806 is about 31798.2044461633. The cubic root of 1011125806 is about 1003.6949326576.

Adding to 1011125806 its reverse (6085211101), we get a palindrome (7096336907).

The spelling of 1011125806 in words is "one billion, eleven million, one hundred twenty-five thousand, eight hundred six".