133554141551 has 4 divisors (see below), whose sum is σ = 133555233672. Its totient is φ = 133553049432.

The previous prime is 133554141527. The next prime is 133554141559. The reversal of 133554141551 is 155141455331.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 155141455331 = 1049 ⋅147894619.

It is a cyclic number.

It is not a de Polignac number, because 133554141551 - 2²⁶ = 133487032687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133554141559) 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, 335585 + ... + 616218.

It is an arithmetic number, because the mean of its divisors is an integer number (33388808418).

Almost surely, 2^133554141551 is an apocalyptic number.

133554141551 is a deficient number, since it is larger than the sum of its proper divisors (1092121).

133554141551 is an equidigital number, since it uses as much as digits as its factorization.

133554141551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092120.

The product of its digits is 90000, while the sum is 38.

Adding to 133554141551 its reverse (155141455331), we get a palindrome (288695596882).

The spelling of 133554141551 in words is "one hundred thirty-three billion, five hundred fifty-four million, one hundred forty-one thousand, five hundred fifty-one".