102257377 has 2 divisors, whose sum is σ = 102257378. Its totient is φ = 102257376.

The previous prime is 102257347. The next prime is 102257401. The reversal of 102257377 is 773752201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99380961 + 2876416 = 9969^2 + 1696^2 .

It is an emirp because it is prime and its reverse (773752201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102257377 - 2⁷ = 102257249 is a prime.

It is not a weakly prime, because it can be changed into another prime (102257327) 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, 51128688 + 51128689.

It is an arithmetic number, because the mean of its divisors is an integer number (51128689).

Almost surely, 2^102257377 is an apocalyptic number.

It is an amenable number.

102257377 is a deficient number, since it is larger than the sum of its proper divisors (1).

102257377 is an equidigital number, since it uses as much as digits as its factorization.

102257377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20580, while the sum is 34.

The square root of 102257377 is about 10112.2389706731. The cubic root of 102257377 is about 467.6255329337.

The spelling of 102257377 in words is "one hundred two million, two hundred fifty-seven thousand, three hundred seventy-seven".