102427649 has 2 divisors, whose sum is σ = 102427650. Its totient is φ = 102427648.

The previous prime is 102427631. The next prime is 102427667. The reversal of 102427649 is 946724201.

It is a balanced prime because it is at equal distance from previous prime (102427631) and next prime (102427667).

It can be written as a sum of positive squares in only one way, i.e., 98644624 + 3783025 = 9932^2 + 1945^2 .

It is a cyclic number.

It is not a de Polignac number, because 102427649 - 2⁸ = 102427393 is a prime.

It is not a weakly prime, because it can be changed into another prime (102427049) 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, 51213824 + 51213825.

It is an arithmetic number, because the mean of its divisors is an integer number (51213825).

Almost surely, 2^102427649 is an apocalyptic number.

It is an amenable number.

102427649 is a deficient number, since it is larger than the sum of its proper divisors (1).

102427649 is an equidigital number, since it uses as much as digits as its factorization.

102427649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 102427649 is about 10120.6545736924. The cubic root of 102427649 is about 467.8849417032.

The spelling of 102427649 in words is "one hundred two million, four hundred twenty-seven thousand, six hundred forty-nine".