101386889 has 2 divisors, whose sum is σ = 101386890. Its totient is φ = 101386888.

The previous prime is 101386847. The next prime is 101386903. The reversal of 101386889 is 988683101.

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., 83814025 + 17572864 = 9155^2 + 4192^2 .

It is a cyclic number.

It is not a de Polignac number, because 101386889 - 2⁸ = 101386633 is a prime.

It is a super-2 number, since 2×101386889² = 20558602522196642, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (101380889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50693444 + 50693445.

It is an arithmetic number, because the mean of its divisors is an integer number (50693445).

Almost surely, 2^101386889 is an apocalyptic number.

It is an amenable number.

101386889 is a deficient number, since it is larger than the sum of its proper divisors (1).

101386889 is an equidigital number, since it uses as much as digits as its factorization.

101386889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 101386889 is about 10069.1056703165. The cubic root of 101386889 is about 466.2948286864.

The spelling of 101386889 in words is "one hundred one million, three hundred eighty-six thousand, eight hundred eighty-nine".