102447265 has 8 divisors (see below), whose sum is σ = 126259560. Its totient is φ = 79742592.

The previous prime is 102447197. The next prime is 102447271. The reversal of 102447265 is 562744201.

It can be written as a sum of positive squares in 4 ways, for example, as 15062161 + 87385104 = 3881^2 + 9348^2 .

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 102447265 - 2²¹ = 100350113 is a prime.

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, 276700 + ... + 277069.

It is an arithmetic number, because the mean of its divisors is an integer number (15782445).

Almost surely, 2^102447265 is an apocalyptic number.

It is an amenable number.

102447265 is a deficient number, since it is larger than the sum of its proper divisors (23812295).

102447265 is an equidigital number, since it uses as much as digits as its factorization.

102447265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553811.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 102447265 is about 10121.6236345756. The cubic root of 102447265 is about 467.9148081350.

The spelling of 102447265 in words is "one hundred two million, four hundred forty-seven thousand, two hundred sixty-five".