41654021 has 2 divisors, whose sum is σ = 41654022. Its totient is φ = 41654020.

The previous prime is 41654017. The next prime is 41654027. The reversal of 41654021 is 12045614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39551521 + 2102500 = 6289^2 + 1450^2 .

It is a cyclic number.

It is not a de Polignac number, because 41654021 - 2² = 41654017 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41654027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20827010 + 20827011.

It is an arithmetic number, because the mean of its divisors is an integer number (20827011).

Almost surely, 2^41654021 is an apocalyptic number.

It is an amenable number.

41654021 is a deficient number, since it is larger than the sum of its proper divisors (1).

41654021 is an equidigital number, since it uses as much as digits as its factorization.

41654021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 41654021 is about 6453.9926402189. The cubic root of 41654021 is about 346.6455615644.

Adding to 41654021 its reverse (12045614), we get a palindrome (53699635).

The spelling of 41654021 in words is "forty-one million, six hundred fifty-four thousand, twenty-one".