1125416890 has 16 divisors (see below), whose sum is σ = 2181577608. Its totient is φ = 415538496.

The previous prime is 1125416879. The next prime is 1125416909. The reversal of 1125416890 is 986145211.

It can be written as a sum of positive squares in 4 ways, for example, as 726895521 + 398521369 = 26961^2 + 19963^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4328397 + ... + 4328656.

Almost surely, 2^1125416890 is an apocalyptic number.

1125416890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1125416890 is a deficient number, since it is larger than the sum of its proper divisors (1056160718).

1125416890 is a wasteful number, since it uses less digits than its factorization.

1125416890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8657073.

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

The square root of 1125416890 is about 33547.2337160607. The cubic root of 1125416890 is about 1040.1703647189.

The spelling of 1125416890 in words is "one billion, one hundred twenty-five million, four hundred sixteen thousand, eight hundred ninety".