340887541 has 2 divisors, whose sum is σ = 340887542. Its totient is φ = 340887540.

The previous prime is 340887539. The next prime is 340887551. The reversal of 340887541 is 145788043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200109316 + 140778225 = 14146^2 + 11865^2 .

It is an emirp because it is prime and its reverse (145788043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340887541 - 2¹ = 340887539 is a prime.

Together with 340887539, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 340887494 and 340887503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340887551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170443770 + 170443771.

It is an arithmetic number, because the mean of its divisors is an integer number (170443771).

Almost surely, 2^340887541 is an apocalyptic number.

It is an amenable number.

340887541 is a deficient number, since it is larger than the sum of its proper divisors (1).

340887541 is an equidigital number, since it uses as much as digits as its factorization.

340887541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 340887541 is about 18463.1400633803. The cubic root of 340887541 is about 698.5599927771.

The spelling of 340887541 in words is "three hundred forty million, eight hundred eighty-seven thousand, five hundred forty-one".