301649 has 2 divisors, whose sum is σ = 301650. Its totient is φ = 301648.

The previous prime is 301643. The next prime is 301657. The reversal of 301649 is 946103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297025 + 4624 = 545^2 + 68^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-301649 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (301643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150824 + 150825.

It is an arithmetic number, because the mean of its divisors is an integer number (150825).

2³⁰¹⁶⁴⁹ is an apocalyptic number.

It is an amenable number.

301649 is a deficient number, since it is larger than the sum of its proper divisors (1).

301649 is an equidigital number, since it uses as much as digits as its factorization.

301649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 301649 is about 549.2258187667. The cubic root of 301649 is about 67.0657259535.

The spelling of 301649 in words is "three hundred one thousand, six hundred forty-nine".