40550131 has 2 divisors, whose sum is σ = 40550132. Its totient is φ = 40550130.

The previous prime is 40550087. The next prime is 40550179. The reversal of 40550131 is 13105504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40550131 - 2¹¹ = 40548083 is a prime.

It is a super-2 number, since 2×40550131² = 3288626248234322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40550099 and 40550108.

It is not a weakly prime, because it can be changed into another prime (40553131) 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, 20275065 + 20275066.

It is an arithmetic number, because the mean of its divisors is an integer number (20275066).

Almost surely, 2^40550131 is an apocalyptic number.

40550131 is a deficient number, since it is larger than the sum of its proper divisors (1).

40550131 is an equidigital number, since it uses as much as digits as its factorization.

40550131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 40550131 is about 6367.8984759495. The cubic root of 40550131 is about 343.5559073551. Note that the first 3 decimals are identical.

Adding to 40550131 its reverse (13105504), we get a palindrome (53655635).

The spelling of 40550131 in words is "forty million, five hundred fifty thousand, one hundred thirty-one".