40575061 has 2 divisors, whose sum is σ = 40575062. Its totient is φ = 40575060.

The previous prime is 40575043. The next prime is 40575077. The reversal of 40575061 is 16057504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37442161 + 3132900 = 6119^2 + 1770^2 .

It is a cyclic number.

It is not a de Polignac number, because 40575061 - 2⁹ = 40574549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40575091) 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, 20287530 + 20287531.

It is an arithmetic number, because the mean of its divisors is an integer number (20287531).

Almost surely, 2^40575061 is an apocalyptic number.

It is an amenable number.

40575061 is a deficient number, since it is larger than the sum of its proper divisors (1).

40575061 is an equidigital number, since it uses as much as digits as its factorization.

40575061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 40575061 is about 6369.8556498558. The cubic root of 40575061 is about 343.6262983662.

It can be divided in two parts, 405 and 75061, that added together give a triangular number (75466 = T₃₈₈).

The spelling of 40575061 in words is "forty million, five hundred seventy-five thousand, sixty-one".