102081504 has 72 divisors (see below), whose sum is σ = 311727528. Its totient is φ = 29164800.

The previous prime is 102081503. The next prime is 102081517. The reversal of 102081504 is 405180201.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102081503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6147 + ... + 15554.

It is an arithmetic number, because the mean of its divisors is an integer number (4329549).

Almost surely, 2^102081504 is an apocalyptic number.

102081504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

102081504 is an abundant number, since it is smaller than the sum of its proper divisors (209646024).

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

102081504 is a wasteful number, since it uses less digits than its factorization.

102081504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21728 (or 21713 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 102081504 is about 10103.5391818907. The cubic root of 102081504 is about 467.3572885528.

The spelling of 102081504 in words is "one hundred two million, eighty-one thousand, five hundred four".