102531469 has 2 divisors, whose sum is σ = 102531470. Its totient is φ = 102531468.

The previous prime is 102531461. The next prime is 102531491. The reversal of 102531469 is 964135201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64561225 + 37970244 = 8035^2 + 6162^2 .

It is a cyclic number.

It is not a de Polignac number, because 102531469 - 2³ = 102531461 is a prime.

It is a super-2 number, since 2×102531469² = 21025404270595922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102531469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102531461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51265734 + 51265735.

It is an arithmetic number, because the mean of its divisors is an integer number (51265735).

Almost surely, 2^102531469 is an apocalyptic number.

It is an amenable number.

102531469 is a deficient number, since it is larger than the sum of its proper divisors (1).

102531469 is an equidigital number, since it uses as much as digits as its factorization.

102531469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 102531469 is about 10125.7823895243. The cubic root of 102531469 is about 468.0429700361.

The spelling of 102531469 in words is "one hundred two million, five hundred thirty-one thousand, four hundred sixty-nine".