102275647 has 2 divisors, whose sum is σ = 102275648. Its totient is φ = 102275646.

The previous prime is 102275639. The next prime is 102275653. The reversal of 102275647 is 746572201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102275647 - 2³ = 102275639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102275617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51137823 + 51137824.

It is an arithmetic number, because the mean of its divisors is an integer number (51137824).

Almost surely, 2^102275647 is an apocalyptic number.

102275647 is a deficient number, since it is larger than the sum of its proper divisors (1).

102275647 is an equidigital number, since it uses as much as digits as its factorization.

102275647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 102275647 is about 10113.1422910983. The cubic root of 102275647 is about 467.6533809970.

The spelling of 102275647 in words is "one hundred two million, two hundred seventy-five thousand, six hundred forty-seven".