135212041441 has 4 divisors (see below), whose sum is σ = 135215762692. Its totient is φ = 135208320192.

The previous prime is 135212041411. The next prime is 135212041451. The reversal of 135212041441 is 144140212531.

It is a happy number.

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 59399925841 + 75812115600 = 243721^2 + 275340^2 .

It is a cyclic number.

It is not a de Polignac number, because 135212041441 - 2¹⁷ = 135211910369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135212041411) 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, 1805580 + ... + 1878973.

It is an arithmetic number, because the mean of its divisors is an integer number (33803940673).

Almost surely, 2^135212041441 is an apocalyptic number.

It is an amenable number.

135212041441 is a deficient number, since it is larger than the sum of its proper divisors (3721251).

135212041441 is an equidigital number, since it uses as much as digits as its factorization.

135212041441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3721250.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 135212041441 its reverse (144140212531), we get a palindrome (279352253972).

The spelling of 135212041441 in words is "one hundred thirty-five billion, two hundred twelve million, forty-one thousand, four hundred forty-one".