41501989 has 2 divisors, whose sum is σ = 41501990. Its totient is φ = 41501988.

The previous prime is 41501953. The next prime is 41502029. The reversal of 41501989 is 98910514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31472100 + 10029889 = 5610^2 + 3167^2 .

It is a cyclic number.

It is not a de Polignac number, because 41501989 - 2¹⁵ = 41469221 is a prime.

It is a super-2 number, since 2×41501989² = 3444830181912242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41531989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20750994 + 20750995.

It is an arithmetic number, because the mean of its divisors is an integer number (20750995).

Almost surely, 2^41501989 is an apocalyptic number.

It is an amenable number.

41501989 is a deficient number, since it is larger than the sum of its proper divisors (1).

41501989 is an equidigital number, since it uses as much as digits as its factorization.

41501989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 41501989 is about 6442.2037378524. The cubic root of 41501989 is about 346.2233096849.

The spelling of 41501989 in words is "forty-one million, five hundred one thousand, nine hundred eighty-nine".