3145555409 has 2 divisors, whose sum is σ = 3145555410. Its totient is φ = 3145555408.

The previous prime is 3145555397. The next prime is 3145555411. The reversal of 3145555409 is 9045555413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2648131600 + 497423809 = 51460^2 + 22303^2 .

It is an emirp because it is prime and its reverse (9045555413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3145555409 - 2¹⁶ = 3145489873 is a prime.

Together with 3145555411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3145554409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572777704 + 1572777705.

It is an arithmetic number, because the mean of its divisors is an integer number (1572777705).

Almost surely, 2^3145555409 is an apocalyptic number.

It is an amenable number.

3145555409 is a deficient number, since it is larger than the sum of its proper divisors (1).

3145555409 is an equidigital number, since it uses as much as digits as its factorization.

3145555409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270000, while the sum is 41.

The square root of 3145555409 is about 56085.2512609153. The cubic root of 3145555409 is about 1465.2074331878.

The spelling of 3145555409 in words is "three billion, one hundred forty-five million, five hundred fifty-five thousand, four hundred nine".