102250657 has 2 divisors, whose sum is σ = 102250658. Its totient is φ = 102250656.

The previous prime is 102250651. The next prime is 102250661. The reversal of 102250657 is 756052201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63425296 + 38825361 = 7964^2 + 6231^2 .

It is an emirp because it is prime and its reverse (756052201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102250657 - 2¹¹ = 102248609 is a prime.

It is not a weakly prime, because it can be changed into another prime (102250651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51125328 + 51125329.

It is an arithmetic number, because the mean of its divisors is an integer number (51125329).

Almost surely, 2^102250657 is an apocalyptic number.

It is an amenable number.

102250657 is a deficient number, since it is larger than the sum of its proper divisors (1).

102250657 is an equidigital number, since it uses as much as digits as its factorization.

102250657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 102250657 is about 10111.9066945853. The cubic root of 102250657 is about 467.6152891335.

The spelling of 102250657 in words is "one hundred two million, two hundred fifty thousand, six hundred fifty-seven".