102531142 has 16 divisors (see below), whose sum is σ = 175906080. Its totient is φ = 43907328.

The previous prime is 102531137. The next prime is 102531157. The reversal of 102531142 is 241135201.

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, 24508 + ... + 28384.

It is an arithmetic number, because the mean of its divisors is an integer number (10994130).

Almost surely, 2^102531142 is an apocalyptic number.

102531142 is a deficient number, since it is larger than the sum of its proper divisors (73374938).

102531142 is a wasteful number, since it uses less digits than its factorization.

102531142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5775.

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

The square root of 102531142 is about 10125.7662426110. The cubic root of 102531142 is about 468.0424724646.

Adding to 102531142 its reverse (241135201), we get a palindrome (343666343).

The spelling of 102531142 in words is "one hundred two million, five hundred thirty-one thousand, one hundred forty-two".