1125018946 has 4 divisors (see below), whose sum is σ = 1687528422. Its totient is φ = 562509472.

The previous prime is 1125018919. The next prime is 1125018977. The reversal of 1125018946 is 6498105211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 679175721 + 445843225 = 26061^2 + 21115^2 .

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 as a sum of consecutive naturals, namely, 281254735 + ... + 281254738.

Almost surely, 2^1125018946 is an apocalyptic number.

1125018946 is a deficient number, since it is larger than the sum of its proper divisors (562509476).

1125018946 is an equidigital number, since it uses as much as digits as its factorization.

1125018946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562509475.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 1125018946 is about 33541.3020916004. The cubic root of 1125018946 is about 1040.0477499033.

The spelling of 1125018946 in words is "one billion, one hundred twenty-five million, eighteen thousand, nine hundred forty-six".