102538523 has 2 divisors, whose sum is σ = 102538524. Its totient is φ = 102538522.

The previous prime is 102538489. The next prime is 102538651. The reversal of 102538523 is 325835201.

It is a weak prime.

It is an emirp because it is prime and its reverse (325835201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102538523 - 2¹² = 102534427 is a prime.

It is a super-4 number, since 4×102538523⁴ (a number of 33 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (102532523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51269261 + 51269262.

It is an arithmetic number, because the mean of its divisors is an integer number (51269262).

Almost surely, 2^102538523 is an apocalyptic number.

102538523 is a deficient number, since it is larger than the sum of its proper divisors (1).

102538523 is an equidigital number, since it uses as much as digits as its factorization.

102538523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 102538523 is about 10126.1307022969. The cubic root of 102538523 is about 468.0537033242.

The spelling of 102538523 in words is "one hundred two million, five hundred thirty-eight thousand, five hundred twenty-three".