41121989 has 2 divisors, whose sum is σ = 41121990. Its totient is φ = 41121988.

The previous prime is 41121979. The next prime is 41122013. The reversal of 41121989 is 98912114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21390625 + 19731364 = 4625^2 + 4442^2 .

It is a cyclic number.

It is not a de Polignac number, because 41121989 - 2⁴ = 41121973 is a prime.

It is a super-2 number, since 2×41121989² = 3382035958632242, 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 (41121979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20560994 + 20560995.

It is an arithmetic number, because the mean of its divisors is an integer number (20560995).

Almost surely, 2^41121989 is an apocalyptic number.

It is an amenable number.

41121989 is a deficient number, since it is larger than the sum of its proper divisors (1).

41121989 is an equidigital number, since it uses as much as digits as its factorization.

41121989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 35.

The square root of 41121989 is about 6412.6429028911. The cubic root of 41121989 is about 345.1633728790.

The spelling of 41121989 in words is "forty-one million, one hundred twenty-one thousand, nine hundred eighty-nine".