102730361 has 2 divisors, whose sum is σ = 102730362. Its totient is φ = 102730360.

The previous prime is 102730343. The next prime is 102730393. The reversal of 102730361 is 163037201.

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., 101384761 + 1345600 = 10069^2 + 1160^2 .

It is a cyclic number.

It is not a de Polignac number, because 102730361 - 2¹⁰ = 102729337 is a prime.

It is not a weakly prime, because it can be changed into another prime (102730301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51365180 + 51365181.

It is an arithmetic number, because the mean of its divisors is an integer number (51365181).

Almost surely, 2^102730361 is an apocalyptic number.

It is an amenable number.

102730361 is a deficient number, since it is larger than the sum of its proper divisors (1).

102730361 is an equidigital number, since it uses as much as digits as its factorization.

102730361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 102730361 is about 10135.5986996329. The cubic root of 102730361 is about 468.3454133596.

Adding to 102730361 its reverse (163037201), we get a palindrome (265767562).

The spelling of 102730361 in words is "one hundred two million, seven hundred thirty thousand, three hundred sixty-one".