103287139 has 2 divisors, whose sum is σ = 103287140. Its totient is φ = 103287138.

The previous prime is 103287137. The next prime is 103287167. The reversal of 103287139 is 931782301.

It is a weak prime.

It is an emirp because it is prime and its reverse (931782301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 103287139 - 2¹ = 103287137 is a prime.

Together with 103287137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (103287131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51643569 + 51643570.

It is an arithmetic number, because the mean of its divisors is an integer number (51643570).

Almost surely, 2^103287139 is an apocalyptic number.

103287139 is a deficient number, since it is larger than the sum of its proper divisors (1).

103287139 is an equidigital number, since it uses as much as digits as its factorization.

103287139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 103287139 is about 10163.0280428620. The cubic root of 103287139 is about 469.1900021660.

The spelling of 103287139 in words is "one hundred three million, two hundred eighty-seven thousand, one hundred thirty-nine".