102045401 has 2 divisors, whose sum is σ = 102045402. Its totient is φ = 102045400.

The previous prime is 102045341. The next prime is 102045443. The reversal of 102045401 is 104540201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95160025 + 6885376 = 9755^2 + 2624^2 .

It is a cyclic number.

It is not a de Polignac number, because 102045401 - 2⁶ = 102045337 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102045401.

It is not a weakly prime, because it can be changed into another prime (102045301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51022700 + 51022701.

It is an arithmetic number, because the mean of its divisors is an integer number (51022701).

Almost surely, 2^102045401 is an apocalyptic number.

It is an amenable number.

102045401 is a deficient number, since it is larger than the sum of its proper divisors (1).

102045401 is an equidigital number, since it uses as much as digits as its factorization.

102045401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 102045401 is about 10101.7523727322. The cubic root of 102045401 is about 467.3021855581.

Adding to 102045401 its reverse (104540201), we get a palindrome (206585602).

The spelling of 102045401 in words is "one hundred two million, forty-five thousand, four hundred one".