2012540473 has 4 divisors (see below), whose sum is σ = 2061626868. Its totient is φ = 1963454080.

The previous prime is 2012540449. The next prime is 2012540483. The reversal of 2012540473 is 3740452102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3740452102 = 2 ⋅1870226051.

It can be written as a sum of positive squares in 2 ways, for example, as 167236624 + 1845303849 = 12932^2 + 42957^2 .

It is a cyclic number.

It is not a de Polignac number, because 2012540473 - 2⁵ = 2012540441 is a prime.

It is a super-4 number, since 4×2012540473⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2012540483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24543136 + ... + 24543217.

It is an arithmetic number, because the mean of its divisors is an integer number (515406717).

Almost surely, 2^2012540473 is an apocalyptic number.

It is an amenable number.

2012540473 is a deficient number, since it is larger than the sum of its proper divisors (49086395).

2012540473 is an equidigital number, since it uses as much as digits as its factorization.

2012540473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49086394.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 2012540473 is about 44861.3472044699. The cubic root of 2012540473 is about 1262.5488994294.

Adding to 2012540473 its reverse (3740452102), we get a palindrome (5752992575).

The spelling of 2012540473 in words is "two billion, twelve million, five hundred forty thousand, four hundred seventy-three".