133144264469 has 4 divisors (see below), whose sum is σ = 140976280044. Its totient is φ = 125312248896.

The previous prime is 133144264459. The next prime is 133144264483. The reversal of 133144264469 is 964462441331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 964462441331 = 63353 ⋅15223627.

It can be written as a sum of positive squares in 2 ways, for example, as 80914647025 + 52229617444 = 284455^2 + 228538^2 .

It is a cyclic number.

It is not a de Polignac number, because 133144264469 - 2⁴ = 133144264453 is a prime.

It is a super-2 number, since 2×133144264469² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133144264459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3916007762 + ... + 3916007795.

It is an arithmetic number, because the mean of its divisors is an integer number (35244070011).

Almost surely, 2^133144264469 is an apocalyptic number.

It is an amenable number.

133144264469 is a deficient number, since it is larger than the sum of its proper divisors (7832015575).

133144264469 is an equidigital number, since it uses as much as digits as its factorization.

133144264469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7832015574.

The product of its digits is 1492992, while the sum is 47.

The spelling of 133144264469 in words is "one hundred thirty-three billion, one hundred forty-four million, two hundred sixty-four thousand, four hundred sixty-nine".