102538 has 8 divisors (see below), whose sum is σ = 155232. Its totient is φ = 50796.

The previous prime is 102533. The next prime is 102539. The reversal of 102538 is 835201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (102533) 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, 181 + ... + 487.

It is an arithmetic number, because the mean of its divisors is an integer number (19404).

2¹⁰²⁵³⁸ is an apocalyptic number.

102538 is a deficient number, since it is larger than the sum of its proper divisors (52694).

102538 is a wasteful number, since it uses less digits than its factorization.

102538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476.

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

The square root of 102538 is about 320.2155524018. The cubic root of 102538 is about 46.8052907550.

Adding to 102538 its reverse (835201), we get a palindrome (937739).

The spelling of 102538 in words is "one hundred two thousand, five hundred thirty-eight".