2125450 has 12 divisors (see below), whose sum is σ = 3953430. Its totient is φ = 850160.

The previous prime is 2125429. The next prime is 2125451. The reversal of 2125450 is 545212.

It can be written as a sum of positive squares in 3 ways, for example, as 1996569 + 128881 = 1413^2 + 359^2 .

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (2125451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21205 + ... + 21304.

2^2125450 is an apocalyptic number.

2125450 is a deficient number, since it is larger than the sum of its proper divisors (1827980).

2125450 is a wasteful number, since it uses less digits than its factorization.

2125450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42521 (or 42516 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2125450 is about 1457.8923142674. The cubic root of 2125450 is about 128.5731540039.

The spelling of 2125450 in words is "two million, one hundred twenty-five thousand, four hundred fifty".