42307125 has 64 divisors (see below), whose sum is σ = 81948672. Its totient is φ = 18984000.

The previous prime is 42307123. The next prime is 42307171. The reversal of 42307125 is 52170324.

It is not a de Polignac number, because 42307125 - 2¹ = 42307123 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42307095 and 42307104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42307123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 186262 + ... + 186488.

It is an arithmetic number, because the mean of its divisors is an integer number (1280448).

Almost surely, 2^42307125 is an apocalyptic number.

It is an amenable number.

42307125 is a deficient number, since it is larger than the sum of its proper divisors (39641547).

42307125 is a wasteful number, since it uses less digits than its factorization.

42307125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 42307125 is about 6504.3927464445. The cubic root of 42307125 is about 348.4478890841.

Adding to 42307125 its reverse (52170324), we get a palindrome (94477449).

The spelling of 42307125 in words is "forty-two million, three hundred seven thousand, one hundred twenty-five".