102531461 has 2 divisors, whose sum is σ = 102531462. Its totient is φ = 102531460.

The previous prime is 102531449. The next prime is 102531469. The reversal of 102531461 is 164135201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67650625 + 34880836 = 8225^2 + 5906^2 .

It is a cyclic number.

It is not a de Polignac number, because 102531461 - 2⁶ = 102531397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102531469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51265730 + 51265731.

It is an arithmetic number, because the mean of its divisors is an integer number (51265731).

Almost surely, 2^102531461 is an apocalyptic number.

It is an amenable number.

102531461 is a deficient number, since it is larger than the sum of its proper divisors (1).

102531461 is an equidigital number, since it uses as much as digits as its factorization.

102531461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 102531461 is about 10125.7819944931. The cubic root of 102531461 is about 468.0429578631.

Adding to 102531461 its reverse (164135201), we get a palindrome (266666662).

The spelling of 102531461 in words is "one hundred two million, five hundred thirty-one thousand, four hundred sixty-one".