101416643 has 2 divisors, whose sum is σ = 101416644. Its totient is φ = 101416642.

The previous prime is 101416619. The next prime is 101416669. The reversal of 101416643 is 346614101.

It is an a-pointer prime, because the next prime (101416669) can be obtained adding 101416643 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101416643 - 2⁸ = 101416387 is a prime.

It is not a weakly prime, because it can be changed into another prime (101416673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50708321 + 50708322.

It is an arithmetic number, because the mean of its divisors is an integer number (50708322).

Almost surely, 2^101416643 is an apocalyptic number.

101416643 is a deficient number, since it is larger than the sum of its proper divisors (1).

101416643 is an equidigital number, since it uses as much as digits as its factorization.

101416643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 101416643 is about 10070.5830516411. The cubic root of 101416643 is about 466.3404387236.

The spelling of 101416643 in words is "one hundred one million, four hundred sixteen thousand, six hundred forty-three".