164663743 has 2 divisors, whose sum is σ = 164663744. Its totient is φ = 164663742.

The previous prime is 164663677. The next prime is 164663753. The reversal of 164663743 is 347366461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164663743 is a prime.

It is a super-2 number, since 2×164663743² = 54228296517540098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164663696 and 164663705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164663753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82331871 + 82331872.

It is an arithmetic number, because the mean of its divisors is an integer number (82331872).

Almost surely, 2^164663743 is an apocalyptic number.

164663743 is a deficient number, since it is larger than the sum of its proper divisors (1).

164663743 is an equidigital number, since it uses as much as digits as its factorization.

164663743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 40.

The square root of 164663743 is about 12832.1371174096. The cubic root of 164663743 is about 548.1078150682.

The spelling of 164663743 in words is "one hundred sixty-four million, six hundred sixty-three thousand, seven hundred forty-three".