103440439 has 2 divisors, whose sum is σ = 103440440. Its totient is φ = 103440438.

The previous prime is 103440437. The next prime is 103440451. The reversal of 103440439 is 934044301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103440439 - 2¹ = 103440437 is a prime.

Together with 103440437, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103440433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51720219 + 51720220.

It is an arithmetic number, because the mean of its divisors is an integer number (51720220).

Almost surely, 2^103440439 is an apocalyptic number.

103440439 is a deficient number, since it is larger than the sum of its proper divisors (1).

103440439 is an equidigital number, since it uses as much as digits as its factorization.

103440439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 103440439 is about 10170.5672899795. The cubic root of 103440439 is about 469.4220132129.

The spelling of 103440439 in words is "one hundred three million, four hundred forty thousand, four hundred thirty-nine".