40061573 has 2 divisors, whose sum is σ = 40061574. Its totient is φ = 40061572.

The previous prime is 40061569. The next prime is 40061599. The reversal of 40061573 is 37516004.

It is an a-pointer prime, because the next prime (40061599) can be obtained adding 40061573 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33721249 + 6340324 = 5807^2 + 2518^2 .

It is a cyclic number.

It is not a de Polignac number, because 40061573 - 2² = 40061569 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40061513) 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 as a sum of consecutive naturals, namely, 20030786 + 20030787.

It is an arithmetic number, because the mean of its divisors is an integer number (20030787).

Almost surely, 2^40061573 is an apocalyptic number.

It is an amenable number.

40061573 is a deficient number, since it is larger than the sum of its proper divisors (1).

40061573 is an equidigital number, since it uses as much as digits as its factorization.

40061573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 40061573 is about 6329.4212215652. The cubic root of 40061573 is about 342.1705799533.

Adding to 40061573 its reverse (37516004), we get a palindrome (77577577).

The spelling of 40061573 in words is "forty million, sixty-one thousand, five hundred seventy-three".