164610749 has 2 divisors, whose sum is σ = 164610750. Its totient is φ = 164610748.

The previous prime is 164610707. The next prime is 164610781. The reversal of 164610749 is 947016461.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164608900 + 1849 = 12830^2 + 43^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164610749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164610049) 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, 82305374 + 82305375.

It is an arithmetic number, because the mean of its divisors is an integer number (82305375).

Almost surely, 2^164610749 is an apocalyptic number.

It is an amenable number.

164610749 is a deficient number, since it is larger than the sum of its proper divisors (1).

164610749 is an equidigital number, since it uses as much as digits as its factorization.

164610749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 164610749 is about 12830.0720574750. The cubic root of 164610749 is about 548.0490092830.

The spelling of 164610749 in words is "one hundred sixty-four million, six hundred ten thousand, seven hundred forty-nine".