106778015 has 8 divisors (see below), whose sum is σ = 128204208. Its totient is φ = 85375360.

The previous prime is 106778011. The next prime is 106778051. The reversal of 106778015 is 510877601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 106778015 - 2² = 106778011 is a prime.

It is a super-2 number, since 2×106778015² = 22803088974680450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106778011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6455 + ... + 15975.

It is an arithmetic number, because the mean of its divisors is an integer number (16025526).

Almost surely, 2^106778015 is an apocalyptic number.

106778015 is a deficient number, since it is larger than the sum of its proper divisors (21426193).

106778015 is an equidigital number, since it uses as much as digits as its factorization.

106778015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11769.

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 106778015 is about 10333.3448118216. The cubic root of 106778015 is about 474.4174057690.

The spelling of 106778015 in words is "one hundred six million, seven hundred seventy-eight thousand, fifteen".