102148436477 has 2 divisors, whose sum is σ = 102148436478. Its totient is φ = 102148436476.

The previous prime is 102148436447. The next prime is 102148436501. The reversal of 102148436477 is 774634841201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101752068196 + 396368281 = 318986^2 + 19909^2 .

It is a cyclic number.

It is not a de Polignac number, because 102148436477 - 2⁶ = 102148436413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102148436447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51074218238 + 51074218239.

It is an arithmetic number, because the mean of its divisors is an integer number (51074218239).

Almost surely, 2^102148436477 is an apocalyptic number.

It is an amenable number.

102148436477 is a deficient number, since it is larger than the sum of its proper divisors (1).

102148436477 is an equidigital number, since it uses as much as digits as its factorization.

102148436477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 47.

The spelling of 102148436477 in words is "one hundred two billion, one hundred forty-eight million, four hundred thirty-six thousand, four hundred seventy-seven".