106145281 has 4 divisors (see below), whose sum is σ = 115794864. Its totient is φ = 96495700.

The previous prime is 106145261. The next prime is 106145287. The reversal of 106145281 is 182541601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 182541601 = 11 ⋅16594691.

It is a cyclic number.

It is not a de Polignac number, because 106145281 - 2¹³ = 106137089 is a prime.

It is a super-2 number, since 2×106145281² = 22533641357137922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106145287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4824775 + ... + 4824796.

It is an arithmetic number, because the mean of its divisors is an integer number (28948716).

Almost surely, 2^106145281 is an apocalyptic number.

106145281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

106145281 is the 4608-th centered decagonal number.

It is an amenable number.

106145281 is a deficient number, since it is larger than the sum of its proper divisors (9649583).

106145281 is an equidigital number, since it uses as much as digits as its factorization.

106145281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9649582.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 106145281 is about 10302.6831941975. The cubic root of 106145281 is about 473.4784643348.

Adding to 106145281 its reverse (182541601), we get a palindrome (288686882).

The spelling of 106145281 in words is "one hundred six million, one hundred forty-five thousand, two hundred eighty-one".