102747105 has 24 divisors (see below), whose sum is σ = 178409088. Its totient is φ = 54701856.

The previous prime is 102747103. The next prime is 102747121. The reversal of 102747105 is 501747201.

It is not a de Polignac number, because 102747105 - 2¹ = 102747103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102747103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29064 + ... + 32406.

It is an arithmetic number, because the mean of its divisors is an integer number (7433712).

Almost surely, 2^102747105 is an apocalyptic number.

102747105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102747105 is a deficient number, since it is larger than the sum of its proper divisors (75661983).

102747105 is a wasteful number, since it uses less digits than its factorization.

102747105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037 (or 4034 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 102747105 is about 10136.4246655317. The cubic root of 102747105 is about 468.3708571508.

The spelling of 102747105 in words is "one hundred two million, seven hundred forty-seven thousand, one hundred five".