125998 has 8 divisors (see below), whose sum is σ = 191808. Its totient is φ = 62064.
The previous prime is 125963. The next prime is 126001. The reversal of 125998 is 899521.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a congruent number.
It is an unprimeable number.
125998 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 in 3 ways as a sum of consecutive naturals, for example, 286 + ... + 577.
It is an arithmetic number, because the mean of its divisors is an integer number (23976).
2125998 is an apocalyptic number.
125998 is a deficient number, since it is larger than the sum of its proper divisors (65810).
125998 is an equidigital number, since it uses as much as digits as its factorization.
125998 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 938.
The product of its digits is 6480, while the sum is 34.
The square root of 125998 is about 354.9619697939. The cubic root of 125998 is about 50.1327140944.
It can be divided in two parts, 125 and 998, that multiplied together give a triangular number (124750 = T499).
The spelling of 125998 in words is "one hundred twenty-five thousand, nine hundred ninety-eight".
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