141777409 has 2 divisors, whose sum is σ = 141777410. Its totient is φ = 141777408.

The previous prime is 141777397. The next prime is 141777421. The reversal of 141777409 is 904777141.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (141777397) and next prime (141777421).

It can be written as a sum of positive squares in only one way, i.e., 126000625 + 15776784 = 11225^2 + 3972^2 .

It is a cyclic number.

It is not a de Polignac number, because 141777409 - 2⁹ = 141776897 is a prime.

It is not a weakly prime, because it can be changed into another prime (141777469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70888704 + 70888705.

It is an arithmetic number, because the mean of its divisors is an integer number (70888705).

Almost surely, 2^141777409 is an apocalyptic number.

It is an amenable number.

141777409 is a deficient number, since it is larger than the sum of its proper divisors (1).

141777409 is an equidigital number, since it uses as much as digits as its factorization.

141777409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 49392, while the sum is 40.

The square root of 141777409 is about 11907.0319139574. The cubic root of 141777409 is about 521.4376010625.

The spelling of 141777409 in words is "one hundred forty-one million, seven hundred seventy-seven thousand, four hundred nine".