102102572 has 24 divisors (see below), whose sum is σ = 209918352. Its totient is φ = 42840000.

The previous prime is 102102571. The next prime is 102102601. The reversal of 102102572 is 275201201.

It is not an unprimeable number, because it can be changed into a prime (102102571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88679 + ... + 89822.

It is an arithmetic number, because the mean of its divisors is an integer number (8746598).

Almost surely, 2^102102572 is an apocalyptic number.

It is an amenable number.

102102572 is an abundant number, since it is smaller than the sum of its proper divisors (107815780).

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

102102572 is a wasteful number, since it uses less digits than its factorization.

102102572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178529 (or 178527 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 102102572 is about 10104.5817330556. The cubic root of 102102572 is about 467.3894380467.

Adding to 102102572 its reverse (275201201), we get a palindrome (377303773).

The spelling of 102102572 in words is "one hundred two million, one hundred two thousand, five hundred seventy-two".