102748845 has 8 divisors (see below), whose sum is σ = 164398176. Its totient is φ = 54799376.

The previous prime is 102748819. The next prime is 102748859. The reversal of 102748845 is 548847201.

It is a happy number.

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 102748845 - 2⁷ = 102748717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3424947 + ... + 3424976.

It is an arithmetic number, because the mean of its divisors is an integer number (20549772).

Almost surely, 2^102748845 is an apocalyptic number.

102748845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102748845 is a deficient number, since it is larger than the sum of its proper divisors (61649331).

102748845 is an equidigital number, since it uses as much as digits as its factorization.

102748845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6849931.

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 102748845 is about 10136.5104942480. The cubic root of 102748845 is about 468.3735010556.

The spelling of 102748845 in words is "one hundred two million, seven hundred forty-eight thousand, eight hundred forty-five".