2157250 has 16 divisors (see below), whose sum is σ = 4038840. Its totient is φ = 862800.

The previous prime is 2157247. The next prime is 2157251. The reversal of 2157250 is 527512.

2157250 is nontrivially palindromic in base 4.

It can be written as a sum of positive squares in 4 ways, for example, as 927369 + 1229881 = 963^2 + 1109^2 .

It is not an unprimeable number, because it can be changed into a prime (2157251) 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, 4065 + ... + 4564.

2^2157250 is an apocalyptic number.

2157250 is a deficient number, since it is larger than the sum of its proper divisors (1881590).

2157250 is an equidigital number, since it uses as much as digits as its factorization.

2157250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8646 (or 8636 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 2157250 is about 1468.7579787017. The cubic root of 2157250 is about 129.2111998138.

The spelling of 2157250 in words is "two million, one hundred fifty-seven thousand, two hundred fifty".