40141261 has 2 divisors, whose sum is σ = 40141262. Its totient is φ = 40141260.

The previous prime is 40141259. The next prime is 40141331. The reversal of 40141261 is 16214104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40068900 + 72361 = 6330^2 + 269^2 .

It is a cyclic number.

It is not a de Polignac number, because 40141261 - 2¹ = 40141259 is a prime.

It is a super-2 number, since 2×40141261² = 3222641669340242, which contains 22 as substring.

Together with 40141259, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40141061) 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, 20070630 + 20070631.

It is an arithmetic number, because the mean of its divisors is an integer number (20070631).

Almost surely, 2^40141261 is an apocalyptic number.

It is an amenable number.

40141261 is a deficient number, since it is larger than the sum of its proper divisors (1).

40141261 is an equidigital number, since it uses as much as digits as its factorization.

40141261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 40141261 is about 6335.7131406022. The cubic root of 40141261 is about 342.3973045332.

Adding to 40141261 its reverse (16214104), we get a palindrome (56355365).

The spelling of 40141261 in words is "forty million, one hundred forty-one thousand, two hundred sixty-one".