102135142 has 16 divisors (see below), whose sum is σ = 158465664. Its totient is φ = 49320000.

The previous prime is 102135119. The next prime is 102135193. The reversal of 102135142 is 241531201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35892 + ... + 38632.

It is an arithmetic number, because the mean of its divisors is an integer number (9904104).

Almost surely, 2^102135142 is an apocalyptic number.

102135142 is a deficient number, since it is larger than the sum of its proper divisors (56330522).

102135142 is a wasteful number, since it uses less digits than its factorization.

102135142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 102135142 is about 10106.1932496861. The cubic root of 102135142 is about 467.4391307407.

Adding to 102135142 its reverse (241531201), we get a palindrome (343666343).

It can be divided in two parts, 1021 and 35142, that added together give a palindrome (36163).

The spelling of 102135142 in words is "one hundred two million, one hundred thirty-five thousand, one hundred forty-two".