133465549387 has 4 divisors (see below), whose sum is σ = 133467177816. Its totient is φ = 133463920960.

The previous prime is 133465549337. The next prime is 133465549429. The reversal of 133465549387 is 783945564331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783945564331 = 26861 ⋅29185271.

It is a cyclic number.

It is not a de Polignac number, because 133465549387 - 2¹⁵ = 133465516619 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133465549337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684373 + ... + 857494.

It is an arithmetic number, because the mean of its divisors is an integer number (33366794454).

Almost surely, 2^133465549387 is an apocalyptic number.

133465549387 is a deficient number, since it is larger than the sum of its proper divisors (1628429).

133465549387 is an equidigital number, since it uses as much as digits as its factorization.

133465549387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628428.

The product of its digits is 32659200, while the sum is 58.

The spelling of 133465549387 in words is "one hundred thirty-three billion, four hundred sixty-five million, five hundred forty-nine thousand, three hundred eighty-seven".