102747061 has 2 divisors, whose sum is σ = 102747062. Its totient is φ = 102747060.

The previous prime is 102747059. The next prime is 102747077. The reversal of 102747061 is 160747201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101808100 + 938961 = 10090^2 + 969^2 .

It is a cyclic number.

It is not a de Polignac number, because 102747061 - 2¹ = 102747059 is a prime.

Together with 102747059, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102747091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51373530 + 51373531.

It is an arithmetic number, because the mean of its divisors is an integer number (51373531).

Almost surely, 2^102747061 is an apocalyptic number.

It is an amenable number.

102747061 is a deficient number, since it is larger than the sum of its proper divisors (1).

102747061 is an equidigital number, since it uses as much as digits as its factorization.

102747061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 102747061 is about 10136.4224951410. The cubic root of 102747061 is about 468.3707902931.

The spelling of 102747061 in words is "one hundred two million, seven hundred forty-seven thousand, sixty-one".