100648155 has 8 divisors (see below), whose sum is σ = 161037072. Its totient is φ = 53679008.

The previous prime is 100648129. The next prime is 100648157. The reversal of 100648155 is 551846001.

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

It is a cyclic number.

It is not a de Polignac number, because 100648155 - 2⁵ = 100648123 is a prime.

It is a super-2 number, since 2×100648155² = 20260102209808050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100648157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3354924 + ... + 3354953.

It is an arithmetic number, because the mean of its divisors is an integer number (20129634).

Almost surely, 2^100648155 is an apocalyptic number.

100648155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100648155 is a deficient number, since it is larger than the sum of its proper divisors (60388917).

100648155 is an equidigital number, since it uses as much as digits as its factorization.

100648155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6709885.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 100648155 is about 10032.3554063839. The cubic root of 100648155 is about 465.1595475171.

The spelling of 100648155 in words is "one hundred million, six hundred forty-eight thousand, one hundred fifty-five".