101666743 has 2 divisors, whose sum is σ = 101666744. Its totient is φ = 101666742.

The previous prime is 101666711. The next prime is 101666753. The reversal of 101666743 is 347666101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101666743 - 2⁵ = 101666711 is a prime.

It is a super-2 number, since 2×101666743² = 20672253264456098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101666699 and 101666708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101666753) 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, 50833371 + 50833372.

It is an arithmetic number, because the mean of its divisors is an integer number (50833372).

Almost surely, 2^101666743 is an apocalyptic number.

101666743 is a deficient number, since it is larger than the sum of its proper divisors (1).

101666743 is an equidigital number, since it uses as much as digits as its factorization.

101666743 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 101666743 is about 10082.9927600886. The cubic root of 101666743 is about 466.7234659323.

The spelling of 101666743 in words is "one hundred one million, six hundred sixty-six thousand, seven hundred forty-three".