102124609 has 2 divisors, whose sum is σ = 102124610. Its totient is φ = 102124608.

The previous prime is 102124579. The next prime is 102124651. The reversal of 102124609 is 906421201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66781584 + 35343025 = 8172^2 + 5945^2 .

It is a cyclic number.

It is not a de Polignac number, because 102124609 - 2¹¹ = 102122561 is a prime.

It is not a weakly prime, because it can be changed into another prime (102124409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51062304 + 51062305.

It is an arithmetic number, because the mean of its divisors is an integer number (51062305).

Almost surely, 2^102124609 is an apocalyptic number.

It is an amenable number.

102124609 is a deficient number, since it is larger than the sum of its proper divisors (1).

102124609 is an equidigital number, since it uses as much as digits as its factorization.

102124609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 102124609 is about 10105.6721201511. The cubic root of 102124609 is about 467.4230614900.

The spelling of 102124609 in words is "one hundred two million, one hundred twenty-four thousand, six hundred nine".