102320464 has 20 divisors (see below), whose sum is σ = 198526356. Its totient is φ = 51087872.

The previous prime is 102320459. The next prime is 102320473. The reversal of 102320464 is 464023201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 38192400 + 64128064 = 6180^2 + 8008^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8232 + ... + 16504.

Almost surely, 2^102320464 is an apocalyptic number.

It is an amenable number.

102320464 is a deficient number, since it is larger than the sum of its proper divisors (96205892).

102320464 is an equidigital number, since it uses as much as digits as its factorization.

102320464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9054 (or 9048 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 102320464 is about 10115.3578285694. The cubic root of 102320464 is about 467.7216793051.

Adding to 102320464 its reverse (464023201), we get a palindrome (566343665).

The spelling of 102320464 in words is "one hundred two million, three hundred twenty thousand, four hundred sixty-four".