135141481 has 2 divisors, whose sum is σ = 135141482. Its totient is φ = 135141480.

The previous prime is 135141463. The next prime is 135141521. The reversal of 135141481 is 184141531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129595456 + 5546025 = 11384^2 + 2355^2 .

It is a cyclic number.

It is not a de Polignac number, because 135141481 - 2⁹ = 135140969 is a prime.

It is a super-2 number, since 2×135141481² = 36526439773746722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135141401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67570740 + 67570741.

It is an arithmetic number, because the mean of its divisors is an integer number (67570741).

Almost surely, 2^135141481 is an apocalyptic number.

It is an amenable number.

135141481 is a deficient number, since it is larger than the sum of its proper divisors (1).

135141481 is an equidigital number, since it uses as much as digits as its factorization.

135141481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 28.

The square root of 135141481 is about 11625.0368171460. The cubic root of 135141481 is about 513.1719281820.

Subtracting 135141481 from its reverse (184141531), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 135141481 in words is "one hundred thirty-five million, one hundred forty-one thousand, four hundred eighty-one".