40646141 has 2 divisors, whose sum is σ = 40646142. Its totient is φ = 40646140.

The previous prime is 40646113. The next prime is 40646147. The reversal of 40646141 is 14164604.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34164025 + 6482116 = 5845^2 + 2546^2 .

It is a cyclic number.

It is not a de Polignac number, because 40646141 - 2⁶ = 40646077 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40646141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40646147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20323070 + 20323071.

It is an arithmetic number, because the mean of its divisors is an integer number (20323071).

Almost surely, 2^40646141 is an apocalyptic number.

It is an amenable number.

40646141 is a deficient number, since it is larger than the sum of its proper divisors (1).

40646141 is an equidigital number, since it uses as much as digits as its factorization.

40646141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 40646141 is about 6375.4326127723. The cubic root of 40646141 is about 343.8268378756.

The spelling of 40646141 in words is "forty million, six hundred forty-six thousand, one hundred forty-one".