102405701 has 2 divisors, whose sum is σ = 102405702. Its totient is φ = 102405700.

The previous prime is 102405629. The next prime is 102405703. The reversal of 102405701 is 107504201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93103201 + 9302500 = 9649^2 + 3050^2 .

It is a cyclic number.

It is not a de Polignac number, because 102405701 - 2¹⁰ = 102404677 is a prime.

It is a Sophie Germain prime.

Together with 102405703, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102405703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51202850 + 51202851.

It is an arithmetic number, because the mean of its divisors is an integer number (51202851).

Almost surely, 2^102405701 is an apocalyptic number.

It is an amenable number.

102405701 is a deficient number, since it is larger than the sum of its proper divisors (1).

102405701 is an equidigital number, since it uses as much as digits as its factorization.

102405701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 102405701 is about 10119.5701983829. The cubic root of 102405701 is about 467.8515201535.

Adding to 102405701 its reverse (107504201), we get a palindrome (209909902).

The spelling of 102405701 in words is "one hundred two million, four hundred five thousand, seven hundred one".