102705401 has 2 divisors, whose sum is σ = 102705402. Its totient is φ = 102705400.

The previous prime is 102705397. The next prime is 102705409. The reversal of 102705401 is 104507201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82446400 + 20259001 = 9080^2 + 4501^2 .

It is a cyclic number.

It is not a de Polignac number, because 102705401 - 2² = 102705397 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102705409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51352700 + 51352701.

It is an arithmetic number, because the mean of its divisors is an integer number (51352701).

Almost surely, 2^102705401 is an apocalyptic number.

It is an amenable number.

102705401 is a deficient number, since it is larger than the sum of its proper divisors (1).

102705401 is an equidigital number, since it uses as much as digits as its factorization.

102705401 is an odious number, because the sum of its binary digits is odd.

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

The square root of 102705401 is about 10134.3673211503. The cubic root of 102705401 is about 468.3074795937.

The spelling of 102705401 in words is "one hundred two million, seven hundred five thousand, four hundred one".