101380889 has 2 divisors, whose sum is σ = 101380890. Its totient is φ = 101380888.

The previous prime is 101380861. The next prime is 101380907. The reversal of 101380889 is 988083101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100902025 + 478864 = 10045^2 + 692^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101380889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (101380859) 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, 50690444 + 50690445.

It is an arithmetic number, because the mean of its divisors is an integer number (50690445).

Almost surely, 2^101380889 is an apocalyptic number.

It is an amenable number.

101380889 is a deficient number, since it is larger than the sum of its proper divisors (1).

101380889 is an equidigital number, since it uses as much as digits as its factorization.

101380889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 101380889 is about 10068.8077248500. The cubic root of 101380889 is about 466.2856301790.

The spelling of 101380889 in words is "one hundred one million, three hundred eighty thousand, eight hundred eighty-nine".