135454542415 has 4 divisors (see below), whose sum is σ = 162545450904. Its totient is φ = 108363633928.

The previous prime is 135454542331. The next prime is 135454542451. The reversal of 135454542415 is 514245454531.

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

It is a cyclic number.

It is not a de Polignac number, because 135454542415 - 2¹⁷ = 135454411343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13545454237 + ... + 13545454246.

It is an arithmetic number, because the mean of its divisors is an integer number (40636362726).

Almost surely, 2^135454542415 is an apocalyptic number.

135454542415 is a deficient number, since it is larger than the sum of its proper divisors (27090908489).

135454542415 is an equidigital number, since it uses as much as digits as its factorization.

135454542415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27090908488.

The product of its digits is 960000, while the sum is 43.

Adding to 135454542415 its reverse (514245454531), we get a palindrome (649699996946).

The spelling of 135454542415 in words is "one hundred thirty-five billion, four hundred fifty-four million, five hundred forty-two thousand, four hundred fifteen".