102531001 has 2 divisors, whose sum is σ = 102531002. Its totient is φ = 102531000.

The previous prime is 102530977. The next prime is 102531007. The reversal of 102531001 is 100135201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102515625 + 15376 = 10125^2 + 124^2 .

It is a cyclic number.

It is not a de Polignac number, because 102531001 - 2¹¹ = 102528953 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102531007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51265500 + 51265501.

It is an arithmetic number, because the mean of its divisors is an integer number (51265501).

Almost surely, 2^102531001 is an apocalyptic number.

It is an amenable number.

102531001 is a deficient number, since it is larger than the sum of its proper divisors (1).

102531001 is an equidigital number, since it uses as much as digits as its factorization.

102531001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 102531001 is about 10125.7592801725. The cubic root of 102531001 is about 468.0422579150.

Adding to 102531001 its reverse (100135201), we get a palindrome (202666202).

The spelling of 102531001 in words is "one hundred two million, five hundred thirty-one thousand, one".