164030749 has 2 divisors, whose sum is σ = 164030750. Its totient is φ = 164030748.

The previous prime is 164030729. The next prime is 164030771. The reversal of 164030749 is 947030461.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 134676025 + 29354724 = 11605^2 + 5418^2 .

It is a cyclic number.

It is not a de Polignac number, because 164030749 - 2¹⁹ = 163506461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164030729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82015374 + 82015375.

It is an arithmetic number, because the mean of its divisors is an integer number (82015375).

Almost surely, 2^164030749 is an apocalyptic number.

It is an amenable number.

164030749 is a deficient number, since it is larger than the sum of its proper divisors (1).

164030749 is an equidigital number, since it uses as much as digits as its factorization.

164030749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 164030749 is about 12807.4489653483. The cubic root of 164030749 is about 547.4045748775.

The spelling of 164030749 in words is "one hundred sixty-four million, thirty thousand, seven hundred forty-nine".