102148576385 has 4 divisors (see below), whose sum is σ = 122578291668. Its totient is φ = 81718861104.

The previous prime is 102148576381. The next prime is 102148576399. The reversal of 102148576385 is 583675841201.

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 12781659136 + 89366917249 = 113056^2 + 298943^2 .

It is a cyclic number.

It is not a de Polignac number, because 102148576385 - 2² = 102148576381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102148576381) 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, 10214857634 + ... + 10214857643.

It is an arithmetic number, because the mean of its divisors is an integer number (30644572917).

Almost surely, 2^102148576385 is an apocalyptic number.

It is an amenable number.

102148576385 is a deficient number, since it is larger than the sum of its proper divisors (20429715283).

102148576385 is an equidigital number, since it uses as much as digits as its factorization.

102148576385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20429715282.

The product of its (nonzero) digits is 1612800, while the sum is 50.

The spelling of 102148576385 in words is "one hundred two billion, one hundred forty-eight million, five hundred seventy-six thousand, three hundred eighty-five".