65174489 has 2 divisors, whose sum is σ = 65174490. Its totient is φ = 65174488.

The previous prime is 65174467. The next prime is 65174507. The reversal of 65174489 is 98447156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32775625 + 32398864 = 5725^2 + 5692^2 .

It is a cyclic number.

It is not a de Polignac number, because 65174489 - 2⁸ = 65174233 is a prime.

It is a super-2 number, since 2×65174489² = 8495428032822242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65174419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32587244 + 32587245.

It is an arithmetic number, because the mean of its divisors is an integer number (32587245).

Almost surely, 2^65174489 is an apocalyptic number.

It is an amenable number.

65174489 is a deficient number, since it is larger than the sum of its proper divisors (1).

65174489 is an equidigital number, since it uses as much as digits as its factorization.

65174489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 65174489 is about 8073.0718441000. The cubic root of 65174489 is about 402.4320351275.

The spelling of 65174489 in words is "sixty-five million, one hundred seventy-four thousand, four hundred eighty-nine".