40521037 has 2 divisors, whose sum is σ = 40521038. Its totient is φ = 40521036.

The previous prime is 40521029. The next prime is 40521109. The reversal of 40521037 is 73012504.

40521037 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32787076 + 7733961 = 5726^2 + 2781^2 .

It is a cyclic number.

It is not a de Polignac number, because 40521037 - 2³ = 40521029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40520999 and 40521017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40521337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20260518 + 20260519.

It is an arithmetic number, because the mean of its divisors is an integer number (20260519).

Almost surely, 2^40521037 is an apocalyptic number.

It is an amenable number.

40521037 is a deficient number, since it is larger than the sum of its proper divisors (1).

40521037 is an equidigital number, since it uses as much as digits as its factorization.

40521037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 40521037 is about 6365.6136389197. The cubic root of 40521037 is about 343.4737226060.

The spelling of 40521037 in words is "forty million, five hundred twenty-one thousand, thirty-seven".