9102745 has 4 divisors (see below), whose sum is σ = 10923300. Its totient is φ = 7282192.

The previous prime is 9102739. The next prime is 9102749. The reversal of 9102745 is 5472019.

It is a happy number.

9102745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6533136 + 2569609 = 2556^2 + 1603^2 .

It is a cyclic number.

It is not a de Polignac number, because 9102745 - 2¹¹ = 9100697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9102749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910270 + ... + 910279.

It is an arithmetic number, because the mean of its divisors is an integer number (2730825).

Almost surely, 2^9102745 is an apocalyptic number.

It is an amenable number.

9102745 is a deficient number, since it is larger than the sum of its proper divisors (1820555).

9102745 is a wasteful number, since it uses less digits than its factorization.

9102745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820554.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 9102745 is about 3017.0755708136. The cubic root of 9102745 is about 208.7969380628.

It can be divided in two parts, 910 and 2745, that added together give a triangular number (3655 = T₈₅).

The spelling of 9102745 in words is "nine million, one hundred two thousand, seven hundred forty-five".