2012561073 has 40 divisors (see below), whose sum is σ = 3183364800. Its totient is φ = 1263576672.

The previous prime is 2012561071. The next prime is 2012561107. The reversal of 2012561073 is 3701652102.

It is a happy number.

2012561073 is a `hidden beast` number, since 20 + 1 + 25 + 610 + 7 + 3 = 666.

It is not a de Polignac number, because 2012561073 - 2¹ = 2012561071 is a prime.

It is a super-2 number, since 2×2012561073² = 8100804145109822658, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2012561071) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 262468 + ... + 270026.

It is an arithmetic number, because the mean of its divisors is an integer number (79584120).

Almost surely, 2^2012561073 is an apocalyptic number.

It is an amenable number.

2012561073 is a deficient number, since it is larger than the sum of its proper divisors (1170803727).

2012561073 is a wasteful number, since it uses less digits than its factorization.

2012561073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7763 (or 7754 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2012561073 is about 44861.5768001973. The cubic root of 2012561073 is about 1262.5532071554.

The spelling of 2012561073 in words is "two billion, twelve million, five hundred sixty-one thousand, seventy-three".