71800125 has 16 divisors (see below), whose sum is σ = 119476032. Its totient is φ = 38293200.

The previous prime is 71800121. The next prime is 71800139. The reversal of 71800125 is 52100817.

It is not a de Polignac number, because 71800125 - 2² = 71800121 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 71800095 and 71800104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71800121) 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, 95359 + ... + 96108.

It is an arithmetic number, because the mean of its divisors is an integer number (7467252).

Almost surely, 2^71800125 is an apocalyptic number.

71800125 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

71800125 is a deficient number, since it is larger than the sum of its proper divisors (47675907).

71800125 is a wasteful number, since it uses less digits than its factorization.

71800125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191485 (or 191475 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 71800125 is about 8473.4954416699. The cubic root of 71800125 is about 415.6314478808.

The spelling of 71800125 in words is "seventy-one million, eight hundred thousand, one hundred twenty-five".