106791555 has 32 divisors (see below), whose sum is σ = 187500096. Its totient is φ = 51577344.

The previous prime is 106791539. The next prime is 106791577. The reversal of 106791555 is 555197601.

It is a Cunningham number, because it is equal to 10334²-1.

It is not a de Polignac number, because 106791555 - 2⁴ = 106791539 is a prime.

It is a super-2 number, since 2×106791555² = 22808872438636050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5169 + ... + 15501.

It is an arithmetic number, because the mean of its divisors is an integer number (5859378).

Almost surely, 2^106791555 is an apocalyptic number.

106791555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

106791555 is a deficient number, since it is larger than the sum of its proper divisors (80708541).

106791555 is a wasteful number, since it uses less digits than its factorization.

106791555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10407.

The product of its (nonzero) digits is 47250, while the sum is 39.

The square root of 106791555 is about 10333.9999516160. Note that the first 4 decimals coincide. The cubic root of 106791555 is about 474.4374577749.

The spelling of 106791555 in words is "one hundred six million, seven hundred ninety-one thousand, five hundred fifty-five".