1125012664 has 8 divisors (see below), whose sum is σ = 2109398760. Its totient is φ = 562506328.

The previous prime is 1125012643. The next prime is 1125012683. The reversal of 1125012664 is 4662105211.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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, 70313284 + ... + 70313299.

It is an arithmetic number, because the mean of its divisors is an integer number (263674845).

Almost surely, 2^1125012664 is an apocalyptic number.

It is an amenable number.

1125012664 is a deficient number, since it is larger than the sum of its proper divisors (984386096).

1125012664 is a wasteful number, since it uses less digits than its factorization.

1125012664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140626589 (or 140626585 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 1125012664 is about 33541.2084457313. The cubic root of 1125012664 is about 1040.0458140567.

Adding to 1125012664 its reverse (4662105211), we get a palindrome (5787117875).

The spelling of 1125012664 in words is "one billion, one hundred twenty-five million, twelve thousand, six hundred sixty-four".