125450 has 24 divisors (see below), whose sum is σ = 252588. Its totient is φ = 46080.

The previous prime is 125441. The next prime is 125453. The reversal of 125450 is 54521.

It can be written as a sum of positive squares in 6 ways, for example, as 11881 + 113569 = 109^2 + 337^2 .

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

It is not an unprimeable number, because it can be changed into a prime (125453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 554 + ... + 746.

2¹²⁵⁴⁵⁰ is an apocalyptic number.

125450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125450 is an abundant number, since it is smaller than the sum of its proper divisors (127138).

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

125450 is a wasteful number, since it uses less digits than its factorization.

125450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 125450 is about 354.1892149685. The cubic root of 125450 is about 50.0599281437.

Subtracting from 125450 its product of nonzero digits (200), we obtain a triangular number (125250 = T₅₀₀).

Adding to 125450 its reverse (54521), we get a palindrome (179971).

It can be divided in two parts, 125 and 450, that added together give a palindrome (575).

The spelling of 125450 in words is "one hundred twenty-five thousand, four hundred fifty".