2097251 has 8 divisors (see below), whose sum is σ = 2336880. Its totient is φ = 1868832.

The previous prime is 2097229. The next prime is 2097257. The reversal of 2097251 is 1527902.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2097251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2097251.

It is not an unprimeable number, because it can be changed into a prime (2097257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2405 + ... + 3158.

It is an arithmetic number, because the mean of its divisors is an integer number (292110).

2^2097251 is an apocalyptic number.

2097251 is a deficient number, since it is larger than the sum of its proper divisors (239629).

2097251 is a wasteful number, since it uses less digits than its factorization.

2097251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5605.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 2097251 is about 1448.1888688980. The cubic root of 2097251 is about 128.0020141285.

The spelling of 2097251 in words is "two million, ninety-seven thousand, two hundred fifty-one".