2012779145 has 16 divisors (see below), whose sum is σ = 2650212432. Its totient is φ = 1458312960.

The previous prime is 2012779127. The next prime is 2012779229. The reversal of 2012779145 is 5419772102.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 176570944 + 1836208201 = 13288^2 + 42851^2 .

It is not a de Polignac number, because 2012779145 - 2¹² = 2012775049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012779099 and 2012779108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288686 + ... + 295575.

It is an arithmetic number, because the mean of its divisors is an integer number (165638277).

Almost surely, 2^2012779145 is an apocalyptic number.

It is an amenable number.

2012779145 is a deficient number, since it is larger than the sum of its proper divisors (637433287).

2012779145 is a wasteful number, since it uses less digits than its factorization.

2012779145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584332.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 2012779145 is about 44864.0072329702. The cubic root of 2012779145 is about 1262.5988070236.

The spelling of 2012779145 in words is "two billion, twelve million, seven hundred seventy-nine thousand, one hundred forty-five".