2011451385 has 8 divisors (see below), whose sum is σ = 3218322240. Its totient is φ = 1072774064.

The previous prime is 2011451383. The next prime is 2011451419. The reversal of 2011451385 is 5831541102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2011451385 - 2¹ = 2011451383 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2011451383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67048365 + ... + 67048394.

It is an arithmetic number, because the mean of its divisors is an integer number (402290280).

Almost surely, 2^2011451385 is an apocalyptic number.

It is an amenable number.

2011451385 is a deficient number, since it is larger than the sum of its proper divisors (1206870855).

2011451385 is a wasteful number, since it uses less digits than its factorization.

2011451385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134096767.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 2011451385 is about 44849.2071836281. The cubic root of 2011451385 is about 1262.3211151966.

Adding to 2011451385 its reverse (5831541102), we get a palindrome (7842992487).

The spelling of 2011451385 in words is "two billion, eleven million, four hundred fifty-one thousand, three hundred eighty-five".