40140511 has 2 divisors, whose sum is σ = 40140512. Its totient is φ = 40140510.

The previous prime is 40140493. The next prime is 40140539. The reversal of 40140511 is 11504104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40140511 - 2¹⁷ = 40009439 is a prime.

It is a super-2 number, since 2×40140511² = 3222521246682242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40140011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20070255 + 20070256.

It is an arithmetic number, because the mean of its divisors is an integer number (20070256).

Almost surely, 2^40140511 is an apocalyptic number.

40140511 is a deficient number, since it is larger than the sum of its proper divisors (1).

40140511 is an equidigital number, since it uses as much as digits as its factorization.

40140511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 40140511 is about 6335.6539520400. The cubic root of 40140511 is about 342.3951720676.

Adding to 40140511 its reverse (11504104), we get a palindrome (51644615).

The spelling of 40140511 in words is "forty million, one hundred forty thousand, five hundred eleven".