102531449 has 2 divisors, whose sum is σ = 102531450. Its totient is φ = 102531448.

The previous prime is 102531427. The next prime is 102531461. The reversal of 102531449 is 944135201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96924025 + 5607424 = 9845^2 + 2368^2 .

It is a cyclic number.

It is not a de Polignac number, because 102531449 - 2²⁴ = 85754233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102531409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51265724 + 51265725.

It is an arithmetic number, because the mean of its divisors is an integer number (51265725).

Almost surely, 2^102531449 is an apocalyptic number.

It is an amenable number.

102531449 is a deficient number, since it is larger than the sum of its proper divisors (1).

102531449 is an equidigital number, since it uses as much as digits as its factorization.

102531449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 102531449 is about 10125.7814019462. The cubic root of 102531449 is about 468.0429396036.

The spelling of 102531449 in words is "one hundred two million, five hundred thirty-one thousand, four hundred forty-nine".