133523402543465 has 8 divisors (see below), whose sum is σ = 174794272420608. Its totient is φ = 97107929122480.

The previous prime is 133523402543449. The next prime is 133523402543467. The reversal of 133523402543465 is 564345204325331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133523402543465 - 2⁴ = 133523402543449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133523402543467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1213849113977 + ... + 1213849114086.

It is an arithmetic number, because the mean of its divisors is an integer number (21849284052576).

Almost surely, 2^{133523402543465} is an apocalyptic number.

It is an amenable number.

133523402543465 is a deficient number, since it is larger than the sum of its proper divisors (41270869877143).

133523402543465 is a wasteful number, since it uses less digits than its factorization.

133523402543465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427698228079.

The product of its (nonzero) digits is 15552000, while the sum is 50.

Adding to 133523402543465 its reverse (564345204325331), we get a palindrome (697868606868796).

The spelling of 133523402543465 in words is "one hundred thirty-three trillion, five hundred twenty-three billion, four hundred two million, five hundred forty-three thousand, four hundred sixty-five".