780125 has 12 divisors (see below), whose sum is σ = 986076. Its totient is φ = 616200.

The previous prime is 780119. The next prime is 780127. The reversal of 780125 is 521087.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 24964 + 755161 = 158^2 + 869^2 .

It is not a de Polignac number, because 780125 - 2⁶ = 780061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 780125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9836 + ... + 9914.

It is an arithmetic number, because the mean of its divisors is an integer number (82173).

2⁷⁸⁰¹²⁵ is an apocalyptic number.

It is an amenable number.

780125 is a deficient number, since it is larger than the sum of its proper divisors (205951).

780125 is an frugal number, since it uses more digits than its factorization.

780125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 780125 is about 883.2468511124. The cubic root of 780125 is about 92.0565578510.

The spelling of 780125 in words is "seven hundred eighty thousand, one hundred twenty-five".