102752345 has 4 divisors (see below), whose sum is σ = 123302820. Its totient is φ = 82201872.

The previous prime is 102752333. The next prime is 102752359. The reversal of 102752345 is 543257201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543257201 = 181 ⋅3001421.

It can be written as a sum of positive squares in 2 ways, for example, as 17909824 + 84842521 = 4232^2 + 9211^2 .

It is a cyclic number.

It is not a de Polignac number, because 102752345 - 2⁶ = 102752281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10275230 + ... + 10275239.

It is an arithmetic number, because the mean of its divisors is an integer number (30825705).

Almost surely, 2^102752345 is an apocalyptic number.

It is an amenable number.

102752345 is a deficient number, since it is larger than the sum of its proper divisors (20550475).

102752345 is an equidigital number, since it uses as much as digits as its factorization.

102752345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20550474.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 102752345 is about 10136.6831360164. The cubic root of 102752345 is about 468.3788191645.

The spelling of 102752345 in words is "one hundred two million, seven hundred fifty-two thousand, three hundred forty-five".