133718342815 has 4 divisors (see below), whose sum is σ = 160462011384. Its totient is φ = 106974674248.

The previous prime is 133718342809. The next prime is 133718342837. The reversal of 133718342815 is 518243817331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 518243817331 = 115981 ⋅4468351.

It is a cyclic number.

It is not a de Polignac number, because 133718342815 - 2¹³ = 133718334623 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, 13371834277 + ... + 13371834286.

It is an arithmetic number, because the mean of its divisors is an integer number (40115502846).

Almost surely, 2^133718342815 is an apocalyptic number.

133718342815 is a deficient number, since it is larger than the sum of its proper divisors (26743668569).

133718342815 is an equidigital number, since it uses as much as digits as its factorization.

133718342815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26743668568.

The product of its digits is 483840, while the sum is 46.

The spelling of 133718342815 in words is "one hundred thirty-three billion, seven hundred eighteen million, three hundred forty-two thousand, eight hundred fifteen".