102469520 has 20 divisors (see below), whose sum is σ = 238241820. Its totient is φ = 40987776.

The previous prime is 102469519. The next prime is 102469529. The reversal of 102469520 is 25964201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 77228944 + 25240576 = 8788^2 + 5024^2 .

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

It is not an unprimeable number, because it can be changed into a prime (102469529) 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, 640355 + ... + 640514.

It is an arithmetic number, because the mean of its divisors is an integer number (11912091).

Almost surely, 2^102469520 is an apocalyptic number.

102469520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102469520 is an abundant number, since it is smaller than the sum of its proper divisors (135772300).

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

102469520 is a wasteful number, since it uses less digits than its factorization.

102469520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280882 (or 1280876 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 102469520 is about 10122.7229538302. The cubic root of 102469520 is about 467.9486879726.

The spelling of 102469520 in words is "one hundred two million, four hundred sixty-nine thousand, five hundred twenty".