101394389 has 2 divisors, whose sum is σ = 101394390. Its totient is φ = 101394388.

The previous prime is 101394347. The next prime is 101394413. The reversal of 101394389 is 983493101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96628900 + 4765489 = 9830^2 + 2183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101394389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101394329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50697194 + 50697195.

It is an arithmetic number, because the mean of its divisors is an integer number (50697195).

Almost surely, 2^101394389 is an apocalyptic number.

It is an amenable number.

101394389 is a deficient number, since it is larger than the sum of its proper divisors (1).

101394389 is an equidigital number, since it uses as much as digits as its factorization.

101394389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 101394389 is about 10069.4780897522. The cubic root of 101394389 is about 466.3063263104.

The spelling of 101394389 in words is "one hundred one million, three hundred ninety-four thousand, three hundred eighty-nine".