125499 has 8 divisors (see below), whose sum is σ = 182592. Its totient is φ = 76040.

The previous prime is 125497. The next prime is 125507. The reversal of 125499 is 994521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125499 - 2¹ = 125497 is a prime.

125499 is a lucky number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (125497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1869 + ... + 1934.

It is an arithmetic number, because the mean of its divisors is an integer number (22824).

2¹²⁵⁴⁹⁹ is an apocalyptic number.

125499 is a deficient number, since it is larger than the sum of its proper divisors (57093).

125499 is a wasteful number, since it uses less digits than its factorization.

125499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3817.

The product of its digits is 3240, while the sum is 30.

The square root of 125499 is about 354.2583802820. The cubic root of 125499 is about 50.0664449955.

The spelling of 125499 in words is "one hundred twenty-five thousand, four hundred ninety-nine".