102505201 has 4 divisors (see below), whose sum is σ = 102537792. Its totient is φ = 102472612.

The previous prime is 102505153. The next prime is 102505219.

102505201 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102505201 - 2¹¹ = 102503153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102505241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11005 + ... + 18058.

It is an arithmetic number, because the mean of its divisors is an integer number (25634448).

Almost surely, 2^102505201 is an apocalyptic number.

It is an amenable number.

102505201 is a deficient number, since it is larger than the sum of its proper divisors (32591).

102505201 is an equidigital number, since it uses as much as digits as its factorization.

102505201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32590.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 102505201 is about 10124.4852214816. The cubic root of 102505201 is about 468.0029966083.

It can be divided in two parts, 10250 and 5201, that added together give a palindrome (15451).

The spelling of 102505201 in words is "one hundred two million, five hundred five thousand, two hundred one".