102825385 has 8 divisors (see below), whose sum is σ = 132882120. Its totient is φ = 75932544.

The previous prime is 102825383. The next prime is 102825409. The reversal of 102825385 is 583528201.

It can be written as a sum of positive squares in 4 ways, for example, as 249001 + 102576384 = 499^2 + 10128^2 .

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 102825385 - 2¹ = 102825383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102825385.

It is not an unprimeable number, because it can be changed into a prime (102825383) 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, 790900 + ... + 791029.

It is an arithmetic number, because the mean of its divisors is an integer number (16610265).

Almost surely, 2^102825385 is an apocalyptic number.

It is an amenable number.

102825385 is a deficient number, since it is larger than the sum of its proper divisors (30056735).

102825385 is a wasteful number, since it uses less digits than its factorization.

102825385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581947.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 102825385 is about 10140.2852523980. The cubic root of 102825385 is about 468.4897729540.

The spelling of 102825385 in words is "one hundred two million, eight hundred twenty-five thousand, three hundred eighty-five".