102015234 has 64 divisors (see below), whose sum is σ = 236160000. Its totient is φ = 32607360.

The previous prime is 102015229. The next prime is 102015247. The reversal of 102015234 is 432510201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249222 + ... + 249630.

It is an arithmetic number, because the mean of its divisors is an integer number (3690000).

Almost surely, 2^102015234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102015234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118080000).

102015234 is an abundant number, since it is smaller than the sum of its proper divisors (134144766).

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

102015234 is a wasteful number, since it uses less digits than its factorization.

102015234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600 (or 594 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 102015234 is about 10100.2591055873. The cubic root of 102015234 is about 467.2561325455.

Adding to 102015234 its reverse (432510201), we get a palindrome (534525435).

The spelling of 102015234 in words is "one hundred two million, fifteen thousand, two hundred thirty-four".