390000101 has 2 divisors, whose sum is σ = 390000102. Its totient is φ = 390000100.

The previous prime is 390000073. The next prime is 390000103. The reversal of 390000101 is 101000093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230584225 + 159415876 = 15185^2 + 12626^2 .

It is an emirp because it is prime and its reverse (101000093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 390000101 - 2²⁶ = 322891237 is a prime.

Together with 390000103, 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 (390000103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195000050 + 195000051.

It is an arithmetic number, because the mean of its divisors is an integer number (195000051).

Almost surely, 2^390000101 is an apocalyptic number.

It is an amenable number.

390000101 is a deficient number, since it is larger than the sum of its proper divisors (1).

390000101 is an equidigital number, since it uses as much as digits as its factorization.

390000101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 390000101 is about 19748.4202152982. The cubic root of 390000101 is about 730.6144204764.

Adding to 390000101 its reverse (101000093), we get a palindrome (491000194).

The spelling of 390000101 in words is "three hundred ninety million, one hundred one", and thus it is an aban number.