1125697005 has 12 divisors (see below), whose sum is σ = 1951208220. Its totient is φ = 600371712.

The previous prime is 1125696983. The next prime is 1125697021. The reversal of 1125697005 is 5007965211.

It can be written as a sum of positive squares in 2 ways, for example, as 418243401 + 707453604 = 20451^2 + 26598^2 .

It is not a de Polignac number, because 1125697005 - 2⁶ = 1125696941 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12507700 + ... + 12507789.

It is an arithmetic number, because the mean of its divisors is an integer number (162600685).

Almost surely, 2^1125697005 is an apocalyptic number.

1125697005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1125697005 is a deficient number, since it is larger than the sum of its proper divisors (825511215).

1125697005 is a wasteful number, since it uses less digits than its factorization.

1125697005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25015500 (or 25015497 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 36.

The square root of 1125697005 is about 33551.4083907069. The cubic root of 1125697005 is about 1040.2566566385.

The spelling of 1125697005 in words is "one billion, one hundred twenty-five million, six hundred ninety-seven thousand, five".