2011512445 has 16 divisors (see below), whose sum is σ = 2493072432. Its totient is φ = 1557204480.

The previous prime is 2011512427. The next prime is 2011512473. The reversal of 2011512445 is 5442151102.

It can be written as a sum of positive squares in 8 ways, for example, as 617796 + 2010894649 = 786^2 + 44843^2 .

It is not a de Polignac number, because 2011512445 - 2⁷ = 2011512317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32646 + ... + 71335.

It is an arithmetic number, because the mean of its divisors is an integer number (155817027).

Almost surely, 2^2011512445 is an apocalyptic number.

It is an amenable number.

2011512445 is a deficient number, since it is larger than the sum of its proper divisors (481559987).

2011512445 is a wasteful number, since it uses less digits than its factorization.

2011512445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104112.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 2011512445 is about 44849.8879039848. The cubic root of 2011512445 is about 1262.3338881538. Note that the first 3 decimals are identical.

Adding to 2011512445 its reverse (5442151102), we get a palindrome (7453663547).

The spelling of 2011512445 in words is "two billion, eleven million, five hundred twelve thousand, four hundred forty-five".