1125040345 has 16 divisors (see below), whose sum is σ = 1586071872. Its totient is φ = 755271360.

The previous prime is 1125040333. The next prime is 1125040393. The reversal of 1125040345 is 5430405211.

It is a happy number.

It is not a de Polignac number, because 1125040345 - 2¹⁷ = 1124909273 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 786027 + ... + 787456.

It is an arithmetic number, because the mean of its divisors is an integer number (99129492).

Almost surely, 2^1125040345 is an apocalyptic number.

It is an amenable number.

1125040345 is a deficient number, since it is larger than the sum of its proper divisors (461031527).

1125040345 is a wasteful number, since it uses less digits than its factorization.

1125040345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573512.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1125040345 is about 33541.6210848552. The cubic root of 1125040345 is about 1040.0543441154.

Adding to 1125040345 its reverse (5430405211), we get a palindrome (6555445556).

The spelling of 1125040345 in words is "one billion, one hundred twenty-five million, forty thousand, three hundred forty-five".