4265981 has 2 divisors, whose sum is σ = 4265982. Its totient is φ = 4265980.

The previous prime is 4265977. The next prime is 4265999. The reversal of 4265981 is 1895624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3740356 + 525625 = 1934^2 + 725^2 .

It is a cyclic number.

It is not a de Polignac number, because 4265981 - 2² = 4265977 is a prime.

It is a super-2 number, since 2×4265981² = 36397187784722, 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 (4265081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2132990 + 2132991.

It is an arithmetic number, because the mean of its divisors is an integer number (2132991).

Almost surely, 2^4265981 is an apocalyptic number.

It is an amenable number.

4265981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4265981 is an equidigital number, since it uses as much as digits as its factorization.

4265981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 35.

The square root of 4265981 is about 2065.4251378348. The cubic root of 4265981 is about 162.1833644932.

The spelling of 4265981 in words is "four million, two hundred sixty-five thousand, nine hundred eighty-one".