106020649 has 4 divisors (see below), whose sum is σ = 121166464. Its totient is φ = 90874836.

The previous prime is 106020641. The next prime is 106020659. The reversal of 106020649 is 946020601.

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: 946020601 = 10903 ⋅86767.

It is a cyclic number.

It is not a de Polignac number, because 106020649 - 2³ = 106020641 is a prime.

It is a super-2 number, since 2×106020649² = 22480756028762402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106020641) 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, 7572897 + ... + 7572910.

It is an arithmetic number, because the mean of its divisors is an integer number (30291616).

Almost surely, 2^106020649 is an apocalyptic number.

It is an amenable number.

106020649 is a deficient number, since it is larger than the sum of its proper divisors (15145815).

106020649 is an equidigital number, since it uses as much as digits as its factorization.

106020649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15145814.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 106020649 is about 10296.6328962433. The cubic root of 106020649 is about 473.2930779206.

The spelling of 106020649 in words is "one hundred six million, twenty thousand, six hundred forty-nine".