1125321846 has 64 divisors (see below), whose sum is σ = 2515968000. Its totient is φ = 332624160.

The previous prime is 1125321779. The next prime is 1125321853. The reversal of 1125321846 is 6481235211.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1547535 + ... + 1548261.

It is an arithmetic number, because the mean of its divisors is an integer number (39312000).

Almost surely, 2^1125321846 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1125321846, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1257984000).

1125321846 is an abundant number, since it is smaller than the sum of its proper divisors (1390646154).

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

1125321846 is a wasteful number, since it uses less digits than its factorization.

1125321846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289.

The product of its digits is 11520, while the sum is 33.

The square root of 1125321846 is about 33545.8171162963. The cubic root of 1125321846 is about 1040.1410823151.

The spelling of 1125321846 in words is "one billion, one hundred twenty-five million, three hundred twenty-one thousand, eight hundred forty-six".