2071251 has 40 divisors (see below), whose sum is σ = 3821664. Its totient is φ = 1088640.

The previous prime is 2071213. The next prime is 2071259. The reversal of 2071251 is 1521702.

It is not a de Polignac number, because 2071251 - 2⁷ = 2071123 is a prime.

2071251 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2071259) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7231 + ... + 7511.

2^2071251 is an apocalyptic number.

2071251 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2071251 is a deficient number, since it is larger than the sum of its proper divisors (1750413).

2071251 is a wasteful number, since it uses less digits than its factorization.

2071251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 2071251 is about 1439.1841438815. The cubic root of 2071251 is about 127.4708583918.

Adding to 2071251 its reverse (1521702), we get a palindrome (3592953).

The spelling of 2071251 in words is "two million, seventy-one thousand, two hundred fifty-one".