125810 has 16 divisors (see below), whose sum is σ = 236736. Its totient is φ = 48048.

The previous prime is 125803. The next prime is 125813. The reversal of 125810 is 18521.

It is a super-2 number, since 2×125810² = 31656312200, which contains 22 as substring.

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

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 125810.

It is not an unprimeable number, because it can be changed into a prime (125813) 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, 44 + ... + 503.

It is an arithmetic number, because the mean of its divisors is an integer number (14796).

2¹²⁵⁸¹⁰ is an apocalyptic number.

125810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125810 is a deficient number, since it is larger than the sum of its proper divisors (110926).

125810 is a wasteful number, since it uses less digits than its factorization.

125810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 125810 is about 354.6970538361. The cubic root of 125810 is about 50.1077675562.

The spelling of 125810 in words is "one hundred twenty-five thousand, eight hundred ten".