41021001 has 12 divisors (see below), whose sum is σ = 67717312. Its totient is φ = 23440536.

The previous prime is 41020997. The next prime is 41021021. The reversal of 41021001 is 10012014.

It is a happy number.

It is not a de Polignac number, because 41021001 - 2² = 41020997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41021021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325501 + ... + 325626.

Almost surely, 2^41021001 is an apocalyptic number.

It is an amenable number.

41021001 is a deficient number, since it is larger than the sum of its proper divisors (26696311).

41021001 is a wasteful number, since it uses less digits than its factorization.

41021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651140 (or 651137 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 41021001 is about 6404.7639300758. The cubic root of 41021001 is about 344.8805887940.

Adding to 41021001 its reverse (10012014), we get a palindrome (51033015).

The spelling of 41021001 in words is "forty-one million, twenty-one thousand, one".