40137593 has 2 divisors, whose sum is σ = 40137594. Its totient is φ = 40137592.

The previous prime is 40137583. The next prime is 40137611. The reversal of 40137593 is 39573104.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37982569 + 2155024 = 6163^2 + 1468^2 .

It is a cyclic number.

It is not a de Polignac number, because 40137593 - 2⁸ = 40137337 is a prime.

It is a super-2 number, since 2×40137593² = 3222052743667298, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40137583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20068796 + 20068797.

It is an arithmetic number, because the mean of its divisors is an integer number (20068797).

Almost surely, 2^40137593 is an apocalyptic number.

It is an amenable number.

40137593 is a deficient number, since it is larger than the sum of its proper divisors (1).

40137593 is an equidigital number, since it uses as much as digits as its factorization.

40137593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 40137593 is about 6335.4236638129. The cubic root of 40137593 is about 342.3868751019.

The spelling of 40137593 in words is "forty million, one hundred thirty-seven thousand, five hundred ninety-three".