125242785 has 12 divisors (see below), whose sum is σ = 217087572. Its totient is φ = 66796128.

The previous prime is 125242783. The next prime is 125242801. The reversal of 125242785 is 587242521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 31404816 + 93837969 = 5604^2 + 9687^2 .

It is not a de Polignac number, because 125242785 - 2¹ = 125242783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125242783) 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, 1391542 + ... + 1391631.

It is an arithmetic number, because the mean of its divisors is an integer number (18090631).

Almost surely, 2^125242785 is an apocalyptic number.

125242785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125242785 is a deficient number, since it is larger than the sum of its proper divisors (91844787).

125242785 is a wasteful number, since it uses less digits than its factorization.

125242785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783184 (or 2783181 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 125242785 is about 11191.1922957297. The cubic root of 125242785 is about 500.3235039785.

The spelling of 125242785 in words is "one hundred twenty-five million, two hundred forty-two thousand, seven hundred eighty-five".