102302197 has 4 divisors (see below), whose sum is σ = 102322636. Its totient is φ = 102281760.

The previous prime is 102302173. The next prime is 102302219. The reversal of 102302197 is 791203201.

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 45887076 + 56415121 = 6774^2 + 7511^2 .

It is a cyclic number.

It is not a de Polignac number, because 102302197 - 2⁷ = 102302069 is a prime.

It is a super-2 number, since 2×102302197² = 20931479022053618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102302797) 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, 2923 + ... + 14599.

It is an arithmetic number, because the mean of its divisors is an integer number (25580659).

Almost surely, 2^102302197 is an apocalyptic number.

It is an amenable number.

102302197 is a deficient number, since it is larger than the sum of its proper divisors (20439).

102302197 is an equidigital number, since it uses as much as digits as its factorization.

102302197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20438.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 102302197 is about 10114.4548543162. The cubic root of 102302197 is about 467.6938439465.

Adding to 102302197 its reverse (791203201), we get a palindrome (893505398).

The spelling of 102302197 in words is "one hundred two million, three hundred two thousand, one hundred ninety-seven".