102671389 has 2 divisors, whose sum is σ = 102671390. Its totient is φ = 102671388.

The previous prime is 102671321. The next prime is 102671399. The reversal of 102671389 is 983176201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92968164 + 9703225 = 9642^2 + 3115^2 .

It is a cyclic number.

It is not a de Polignac number, because 102671389 - 2⁹ = 102670877 is a prime.

It is a super-4 number, since 4×102671389⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102671399) 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, 51335694 + 51335695.

It is an arithmetic number, because the mean of its divisors is an integer number (51335695).

Almost surely, 2^102671389 is an apocalyptic number.

It is an amenable number.

102671389 is a deficient number, since it is larger than the sum of its proper divisors (1).

102671389 is an equidigital number, since it uses as much as digits as its factorization.

102671389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 102671389 is about 10132.6891297424. The cubic root of 102671389 is about 468.2557788638.

The spelling of 102671389 in words is "one hundred two million, six hundred seventy-one thousand, three hundred eighty-nine".