40136773 has 2 divisors, whose sum is σ = 40136774. Its totient is φ = 40136772.

The previous prime is 40136713. The next prime is 40136777. The reversal of 40136773 is 37763104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39664804 + 471969 = 6298^2 + 687^2 .

It is a cyclic number.

It is not a de Polignac number, because 40136773 - 2²¹ = 38039621 is a prime.

It is a super-2 number, since 2×40136773² = 3221921093707058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40136777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20068386 + 20068387.

It is an arithmetic number, because the mean of its divisors is an integer number (20068387).

Almost surely, 2^40136773 is an apocalyptic number.

It is an amenable number.

40136773 is a deficient number, since it is larger than the sum of its proper divisors (1).

40136773 is an equidigital number, since it uses as much as digits as its factorization.

40136773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 40136773 is about 6335.3589479997. The cubic root of 40136773 is about 342.3845434628.

Adding to 40136773 its reverse (37763104), we get a palindrome (77899877).

The spelling of 40136773 in words is "forty million, one hundred thirty-six thousand, seven hundred seventy-three".