40125937 has 4 divisors (see below), whose sum is σ = 41509620. Its totient is φ = 38742256.

The previous prime is 40125907. The next prime is 40125947. The reversal of 40125937 is 73952104.

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 19368801 + 20757136 = 4401^2 + 4556^2 .

It is a cyclic number.

It is not a de Polignac number, because 40125937 - 2⁷ = 40125809 is a prime.

It is a super-2 number, since 2×40125937² = 3220181640255938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40125899 and 40125908.

It is not an unprimeable number, because it can be changed into a prime (40125907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691798 + ... + 691855.

It is an arithmetic number, because the mean of its divisors is an integer number (10377405).

Almost surely, 2^40125937 is an apocalyptic number.

It is an amenable number.

40125937 is a deficient number, since it is larger than the sum of its proper divisors (1383683).

40125937 is a wasteful number, since it uses less digits than its factorization.

40125937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383682.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 40125937 is about 6334.5036901086. The cubic root of 40125937 is about 342.3537287214.

The spelling of 40125937 in words is "forty million, one hundred twenty-five thousand, nine hundred thirty-seven".