106958521 has 2 divisors, whose sum is σ = 106958522. Its totient is φ = 106958520.

The previous prime is 106958513. The next prime is 106958567. The reversal of 106958521 is 125859601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94848121 + 12110400 = 9739^2 + 3480^2 .

It is a cyclic number.

It is not a de Polignac number, because 106958521 - 2³ = 106958513 is a prime.

It is a super-2 number, since 2×106958521² = 22880250429014882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106958821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53479260 + 53479261.

It is an arithmetic number, because the mean of its divisors is an integer number (53479261).

Almost surely, 2^106958521 is an apocalyptic number.

It is an amenable number.

106958521 is a deficient number, since it is larger than the sum of its proper divisors (1).

106958521 is an equidigital number, since it uses as much as digits as its factorization.

106958521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600, while the sum is 37.

The square root of 106958521 is about 10342.0752753014. The cubic root of 106958521 is about 474.6845861703.

The spelling of 106958521 in words is "one hundred six million, nine hundred fifty-eight thousand, five hundred twenty-one".