102134320 has 20 divisors (see below), whose sum is σ = 237462480. Its totient is φ = 40853696.

The previous prime is 102134303. The next prime is 102134323. The reversal of 102134320 is 23431201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 102134294 and 102134303.

It is not an unprimeable number, because it can be changed into a prime (102134323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638260 + ... + 638419.

It is an arithmetic number, because the mean of its divisors is an integer number (11873124).

Almost surely, 2^102134320 is an apocalyptic number.

102134320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102134320 is an abundant number, since it is smaller than the sum of its proper divisors (135328160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102134320 is a wasteful number, since it uses less digits than its factorization.

102134320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276692 (or 1276686 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 102134320 is about 10106.1525814723. The cubic root of 102134320 is about 467.4378767290.

Adding to 102134320 its reverse (23431201), we get a palindrome (125565521).

The spelling of 102134320 in words is "one hundred two million, one hundred thirty-four thousand, three hundred twenty".