102975905 has 8 divisors (see below), whose sum is σ = 123849000. Its totient is φ = 82195456.

The previous prime is 102975889. The next prime is 102975949. The reversal of 102975905 is 509579201.

It can be written as a sum of positive squares in 4 ways, for example, as 21687649 + 81288256 = 4657^2 + 9016^2 .

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 102975905 - 2⁴ = 102975889 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20690 + ... + 25179.

It is an arithmetic number, because the mean of its divisors is an integer number (15481125).

Almost surely, 2^102975905 is an apocalyptic number.

It is an amenable number.

102975905 is a deficient number, since it is larger than the sum of its proper divisors (20873095).

102975905 is an equidigital number, since it uses as much as digits as its factorization.

102975905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46323.

The product of its (nonzero) digits is 28350, while the sum is 38.

The square root of 102975905 is about 10147.7044202125. The cubic root of 102975905 is about 468.7182596582.

The spelling of 102975905 in words is "one hundred two million, nine hundred seventy-five thousand, nine hundred five".