102251057 has 2 divisors, whose sum is σ = 102251058. Its totient is φ = 102251056.

The previous prime is 102251053. The next prime is 102251081. The reversal of 102251057 is 750152201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101687056 + 564001 = 10084^2 + 751^2 .

It is an emirp because it is prime and its reverse (750152201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102251057 - 2² = 102251053 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102251053) 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, 51125528 + 51125529.

It is an arithmetic number, because the mean of its divisors is an integer number (51125529).

Almost surely, 2^102251057 is an apocalyptic number.

It is an amenable number.

102251057 is a deficient number, since it is larger than the sum of its proper divisors (1).

102251057 is an equidigital number, since it uses as much as digits as its factorization.

102251057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 102251057 is about 10111.9264732295. The cubic root of 102251057 is about 467.6158988960.

The spelling of 102251057 in words is "one hundred two million, two hundred fifty-one thousand, fifty-seven".