101939641 has 2 divisors, whose sum is σ = 101939642. Its totient is φ = 101939640.

The previous prime is 101939623. The next prime is 101939659. The reversal of 101939641 is 146939101.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (101939623) and next prime (101939659).

It can be written as a sum of positive squares in only one way, i.e., 95961616 + 5978025 = 9796^2 + 2445^2 .

It is a cyclic number.

It is not a de Polignac number, because 101939641 - 2¹³ = 101931449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101939597 and 101939606.

It is not a weakly prime, because it can be changed into another prime (101939141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50969820 + 50969821.

It is an arithmetic number, because the mean of its divisors is an integer number (50969821).

Almost surely, 2^101939641 is an apocalyptic number.

It is an amenable number.

101939641 is a deficient number, since it is larger than the sum of its proper divisors (1).

101939641 is an equidigital number, since it uses as much as digits as its factorization.

101939641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 101939641 is about 10096.5162803811. The cubic root of 101939641 is about 467.1406922027.

The spelling of 101939641 in words is "one hundred one million, nine hundred thirty-nine thousand, six hundred forty-one".