102135112 has 16 divisors (see below), whose sum is σ = 192161340. Its totient is φ = 50892096.

The previous prime is 102135107. The next prime is 102135113. The reversal of 102135112 is 211531201.

It can be written as a sum of positive squares in 2 ways, for example, as 101485476 + 649636 = 10074^2 + 806^2 .

It is a super-2 number, since 2×102135112² = 20863162206505088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102135113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19443 + ... + 24130.

Almost surely, 2^102135112 is an apocalyptic number.

It is an amenable number.

102135112 is a deficient number, since it is larger than the sum of its proper divisors (90026228).

102135112 is a wasteful number, since it uses less digits than its factorization.

102135112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43872 (or 43868 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 102135112 is about 10106.1917654476. The cubic root of 102135112 is about 467.4390849740.

Adding to 102135112 its reverse (211531201), we get a palindrome (313666313).

The spelling of 102135112 in words is "one hundred two million, one hundred thirty-five thousand, one hundred twelve".