106551449 has 4 divisors (see below), whose sum is σ = 112159440. Its totient is φ = 100943460.

The previous prime is 106551443. The next prime is 106551503. The reversal of 106551449 is 944155601.

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: 944155601 = 43 ⋅21957107.

It is a cyclic number.

It is not a de Polignac number, because 106551449 - 2¹⁶ = 106485913 is a prime.

It is a super-3 number, since 3×106551449³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (106551443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2803967 + ... + 2804004.

It is an arithmetic number, because the mean of its divisors is an integer number (28039860).

Almost surely, 2^106551449 is an apocalyptic number.

106551449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

106551449 is a deficient number, since it is larger than the sum of its proper divisors (5607991).

106551449 is an equidigital number, since it uses as much as digits as its factorization.

106551449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5607990.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 106551449 is about 10322.3761314922. The cubic root of 106551449 is about 474.0816220185.

The spelling of 106551449 in words is "one hundred six million, five hundred fifty-one thousand, four hundred forty-nine".