2125458 has 12 divisors (see below), whose sum is σ = 4605198. Its totient is φ = 708480.

The previous prime is 2125457. The next prime is 2125463. The reversal of 2125458 is 8545212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1830609 + 294849 = 1353^2 + 543^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

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, 59023 + ... + 59058.

2^2125458 is an apocalyptic number.

2125458 is an abundant number, since it is smaller than the sum of its proper divisors (2479740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2125458 is a wasteful number, since it uses less digits than its factorization.

2125458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118089 (or 118086 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 2125458 is about 1457.8950579517. The cubic root of 2125458 is about 128.5733153162.

It can be divided in two parts, 21254 and 58, that added together give a palindrome (21312).

The spelling of 2125458 in words is "two million, one hundred twenty-five thousand, four hundred fifty-eight".