125002 has 4 divisors (see below), whose sum is σ = 187506. Its totient is φ = 62500.

The previous prime is 124991. The next prime is 125003. The reversal of 125002 is 200521.

125002 = T₂₄₈ + T₂₄₉ + ... + T₂₅₁.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200521 = 239 ⋅839.

It can be written as a sum of positive squares in only one way, i.e., 63001 + 62001 = 251^2 + 249^2 .

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 125002.

It is not an unprimeable number, because it can be changed into a prime (125003) by changing a digit.

125002 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31249 + ... + 31252.

125002 is a Friedman number, since it can be written as 50^(2+1+0)+2, using all its digits and the basic arithmetic operations.

2¹²⁵⁰⁰² is an apocalyptic number.

125002 is a deficient number, since it is larger than the sum of its proper divisors (62504).

125002 is an equidigital number, since it uses as much as digits as its factorization.

125002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62503.

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 125002 is about 353.5562190091. The cubic root of 125002 is about 50.0002666652. Note that the first 3 decimals are identical.

Adding to 125002 its reverse (200521), we get a palindrome (325523).

The spelling of 125002 in words is "one hundred twenty-five thousand, two".