141405505 has 12 divisors (see below), whose sum is σ = 179089812. Its totient is φ = 107169120.

The previous prime is 141405493. The next prime is 141405521. The reversal of 141405505 is 505504141.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 80425024 + 60980481 = 8968^2 + 7809^2 .

It is not a de Polignac number, because 141405505 - 2²⁷ = 7187777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 141405505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37366 + ... + 40975.

It is an arithmetic number, because the mean of its divisors is an integer number (14924151).

Almost surely, 2^141405505 is an apocalyptic number.

It is an amenable number.

141405505 is a deficient number, since it is larger than the sum of its proper divisors (37684307).

141405505 is an equidigital number, since it uses as much as digits as its factorization.

141405505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78384 (or 78365 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 141405505 is about 11891.4046689195. The cubic root of 141405505 is about 520.9812647455.

Adding to 141405505 its reverse (505504141), we get a palindrome (646909646).

The spelling of 141405505 in words is "one hundred forty-one million, four hundred five thousand, five hundred five".