106494581 has 2 divisors, whose sum is σ = 106494582. Its totient is φ = 106494580.

The previous prime is 106494559. The next prime is 106494611. The reversal of 106494581 is 185494601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90820900 + 15673681 = 9530^2 + 3959^2 .

It is a cyclic number.

It is not a de Polignac number, because 106494581 - 2¹⁸ = 106232437 is a prime.

It is a super-2 number, since 2×106494581² = 22682191564731122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106494541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53247290 + 53247291.

It is an arithmetic number, because the mean of its divisors is an integer number (53247291).

Almost surely, 2^106494581 is an apocalyptic number.

It is an amenable number.

106494581 is a deficient number, since it is larger than the sum of its proper divisors (1).

106494581 is an equidigital number, since it uses as much as digits as its factorization.

106494581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 106494581 is about 10319.6211655273. The cubic root of 106494581 is about 473.9972656765.

The spelling of 106494581 in words is "one hundred six million, four hundred ninety-four thousand, five hundred eighty-one".