1125005312 has 24 divisors (see below), whose sum is σ = 2249465400. Its totient is φ = 562501632.

The previous prime is 1125005309. The next prime is 1125005347. The reversal of 1125005312 is 2135005211.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272612 + ... + 276707.

It is an arithmetic number, because the mean of its divisors is an integer number (93727725).

Almost surely, 2^1125005312 is an apocalyptic number.

It is an amenable number.

1125005312 is a deficient number, since it is larger than the sum of its proper divisors (1124460088).

1125005312 is an frugal number, since it uses more digits than its factorization.

1125005312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549341 (or 549321 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1125005312 is about 33541.0988490240. The cubic root of 1125005312 is about 1040.0435484723.

The spelling of 1125005312 in words is "one billion, one hundred twenty-five million, five thousand, three hundred twelve".