102289530 has 32 divisors (see below), whose sum is σ = 280566144. Its totient is φ = 23380416.

The previous prime is 102289529. The next prime is 102289549. The reversal of 102289530 is 35982201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243337 + ... + 243756.

It is an arithmetic number, because the mean of its divisors is an integer number (8767692).

Almost surely, 2^102289530 is an apocalyptic number.

102289530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102289530 is an abundant number, since it is smaller than the sum of its proper divisors (178276614).

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

102289530 is a wasteful number, since it uses less digits than its factorization.

102289530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487110.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 102289530 is about 10113.8286519003. The cubic root of 102289530 is about 467.6745399543.

The spelling of 102289530 in words is "one hundred two million, two hundred eighty-nine thousand, five hundred thirty".