2011455 has 12 divisors (see below), whose sum is σ = 3486600. Its totient is φ = 1072752.

The previous prime is 2011441. The next prime is 2011483. The reversal of 2011455 is 5541102.

It is not a de Polignac number, because 2011455 - 2⁴ = 2011439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22305 + ... + 22394.

It is an arithmetic number, because the mean of its divisors is an integer number (290550).

2^2011455 is an apocalyptic number.

2011455 is a deficient number, since it is larger than the sum of its proper divisors (1475145).

2011455 is a wasteful number, since it uses less digits than its factorization.

2011455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44710 (or 44707 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 2011455 is about 1418.2577339821. The cubic root of 2011455 is about 126.2321871415.

Adding to 2011455 its reverse (5541102), we get a palindrome (7552557).

The spelling of 2011455 in words is "two million, eleven thousand, four hundred fifty-five".