2011251 has 16 divisors (see below), whose sum is σ = 2977920. Its totient is φ = 1197120.

The previous prime is 2011241. The next prime is 2011259. The reversal of 2011251 is 1521102.

It is not a de Polignac number, because 2011251 - 2⁷ = 2011123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1431 + ... + 2463.

It is an arithmetic number, because the mean of its divisors is an integer number (186120).

2^2011251 is an apocalyptic number.

2011251 is a deficient number, since it is larger than the sum of its proper divisors (966669).

2011251 is a wasteful number, since it uses less digits than its factorization.

2011251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 2011251 is about 1418.1858129314. The cubic root of 2011251 is about 126.2279195447.

Adding to 2011251 its reverse (1521102), we get a palindrome (3532353).

The spelling of 2011251 in words is "two million, eleven thousand, two hundred fifty-one".