141778663 has 6 divisors (see below), whose sum is σ = 153523824. Its totient is φ = 130872456.

The previous prime is 141778643. The next prime is 141778699. The reversal of 141778663 is 366877141.

It is not a de Polignac number, because 141778663 - 2⁹ = 141778151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141778603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 419295 + ... + 419632.

It is an arithmetic number, because the mean of its divisors is an integer number (25587304).

Almost surely, 2^141778663 is an apocalyptic number.

141778663 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

141778663 is a deficient number, since it is larger than the sum of its proper divisors (11745161).

141778663 is an equidigital number, since it uses as much as digits as its factorization.

141778663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838953 (or 838940 counting only the distinct ones).

The product of its digits is 169344, while the sum is 43.

The square root of 141778663 is about 11907.0845718001. The cubic root of 141778663 is about 521.4391384038.

The spelling of 141778663 in words is "one hundred forty-one million, seven hundred seventy-eight thousand, six hundred sixty-three".