103155105 has 16 divisors (see below), whose sum is σ = 165178944. Its totient is φ = 54972480.

The previous prime is 103155103. The next prime is 103155113. The reversal of 103155105 is 501551301.

It is not a de Polignac number, because 103155105 - 2¹ = 103155103 is a prime.

It is a super-2 number, since 2×103155105² = 21281951375122050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103155103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28075 + ... + 31535.

It is an arithmetic number, because the mean of its divisors is an integer number (10323684).

Almost surely, 2^103155105 is an apocalyptic number.

103155105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103155105 is a deficient number, since it is larger than the sum of its proper divisors (62023839).

103155105 is a wasteful number, since it uses less digits than its factorization.

103155105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5456.

The product of its (nonzero) digits is 375, while the sum is 21.

The square root of 103155105 is about 10156.5301653665. The cubic root of 103155105 is about 468.9899919517.

The spelling of 103155105 in words is "one hundred three million, one hundred fifty-five thousand, one hundred five".