141281905 has 4 divisors (see below), whose sum is σ = 169538292. Its totient is φ = 113025520.

The previous prime is 141281887. The next prime is 141281909. The reversal of 141281905 is 509182141.

It is a happy number.

141281905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96177249 + 45104656 = 9807^2 + 6716^2 .

It is a de Polignac number, because none of the positive numbers 2^k-141281905 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (141281909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14128186 + ... + 14128195.

It is an arithmetic number, because the mean of its divisors is an integer number (42384573).

Almost surely, 2^141281905 is an apocalyptic number.

It is an amenable number.

141281905 is a deficient number, since it is larger than the sum of its proper divisors (28256387).

141281905 is an equidigital number, since it uses as much as digits as its factorization.

141281905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28256386.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 141281905 is about 11886.2065016556. The cubic root of 141281905 is about 520.8294270569.

The spelling of 141281905 in words is "one hundred forty-one million, two hundred eighty-one thousand, nine hundred five".