125982785 has 4 divisors (see below), whose sum is σ = 151179348. Its totient is φ = 100786224.

The previous prime is 125982761. The next prime is 125982797. The reversal of 125982785 is 587289521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 94633984 + 31348801 = 9728^2 + 5599^2 .

It is a cyclic number.

It is not a de Polignac number, because 125982785 - 2¹² = 125978689 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12598274 + ... + 12598283.

It is an arithmetic number, because the mean of its divisors is an integer number (37794837).

Almost surely, 2^125982785 is an apocalyptic number.

It is an amenable number.

125982785 is a deficient number, since it is larger than the sum of its proper divisors (25196563).

125982785 is an equidigital number, since it uses as much as digits as its factorization.

125982785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25196562.

The product of its digits is 403200, while the sum is 47.

The square root of 125982785 is about 11224.2053170815. The cubic root of 125982785 is about 501.3069607307.

The spelling of 125982785 in words is "one hundred twenty-five million, nine hundred eighty-two thousand, seven hundred eighty-five".