102705045 has 8 divisors (see below), whose sum is σ = 164328096. Its totient is φ = 54776016.

The previous prime is 102705023. The next prime is 102705049. The reversal of 102705045 is 540507201.

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

It is not a de Polignac number, because 102705045 - 2¹¹ = 102702997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102705049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3423487 + ... + 3423516.

It is an arithmetic number, because the mean of its divisors is an integer number (20541012).

Almost surely, 2^102705045 is an apocalyptic number.

102705045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102705045 is a deficient number, since it is larger than the sum of its proper divisors (61623051).

102705045 is an equidigital number, since it uses as much as digits as its factorization.

102705045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6847011.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 102705045 is about 10134.3497571379. The cubic root of 102705045 is about 468.3069385067.

The spelling of 102705045 in words is "one hundred two million, seven hundred five thousand, forty-five".