40015125 has 24 divisors (see below), whose sum is σ = 72135960. Its totient is φ = 21340800.

The previous prime is 40015123. The next prime is 40015133. The reversal of 40015125 is 52151004.

It can be written as a sum of positive squares in 4 ways, for example, as 400689 + 39614436 = 633^2 + 6294^2 .

It is not a de Polignac number, because 40015125 - 2¹ = 40015123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40015098 and 40015107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40015123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16660 + ... + 18909.

It is an arithmetic number, because the mean of its divisors is an integer number (3005665).

Almost surely, 2^40015125 is an apocalyptic number.

40015125 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40015125 is a deficient number, since it is larger than the sum of its proper divisors (32120835).

40015125 is a wasteful number, since it uses less digits than its factorization.

40015125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35590 (or 35577 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 40015125 is about 6325.7509435639. The cubic root of 40015125 is about 342.0382895470.

Adding to 40015125 its reverse (52151004), we get a palindrome (92166129).

The spelling of 40015125 in words is "forty million, fifteen thousand, one hundred twenty-five".