106021541 has 2 divisors, whose sum is σ = 106021542. Its totient is φ = 106021540.

The previous prime is 106021511. The next prime is 106021543. The reversal of 106021541 is 145120601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97436641 + 8584900 = 9871^2 + 2930^2 .

It is an emirp because it is prime and its reverse (145120601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106021541 - 2¹⁴ = 106005157 is a prime.

It is a super-2 number, since 2×106021541² = 22481134312029362, which contains 22 as substring.

Together with 106021543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106021543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53010770 + 53010771.

It is an arithmetic number, because the mean of its divisors is an integer number (53010771).

Almost surely, 2^106021541 is an apocalyptic number.

It is an amenable number.

106021541 is a deficient number, since it is larger than the sum of its proper divisors (1).

106021541 is an equidigital number, since it uses as much as digits as its factorization.

106021541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 106021541 is about 10296.6762112829. The cubic root of 106021541 is about 473.2944052603.

The spelling of 106021541 in words is "one hundred six million, twenty-one thousand, five hundred forty-one".