125229 has 16 divisors (see below), whose sum is σ = 190400. Its totient is φ = 73008.

The previous prime is 125221. The next prime is 125231. The reversal of 125229 is 922521.

125229 = 72² + 73² + ... + 90².

It is not a de Polignac number, because 125229 - 2³ = 125221 is a prime.

It is a d-powerful number, because it can be written as 1 + 2 + 2⁴ + 5⁴ + 2¹⁶ + 9⁵ .

It is a Duffinian number.

125229 is a lucky number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6582 + ... + 6600.

It is an arithmetic number, because the mean of its divisors is an integer number (11900).

2¹²⁵²²⁹ is an apocalyptic number.

125229 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

125229 is a deficient number, since it is larger than the sum of its proper divisors (65171).

125229 is an equidigital number, since it uses as much as digits as its factorization.

125229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61 (or 35 counting only the distinct ones).

The product of its digits is 360, while the sum is 21.

The square root of 125229 is about 353.8770973092. The cubic root of 125229 is about 50.0305147066.

Adding to 125229 its sum of digits (21), we get a triangular number (125250 = T₅₀₀).

The spelling of 125229 in words is "one hundred twenty-five thousand, two hundred twenty-nine".