133144031551 has 8 divisors (see below), whose sum is σ = 138981095424. Its totient is φ = 127310983800.

The previous prime is 133144031521. The next prime is 133144031557. The reversal of 133144031551 is 155130441331.

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

It is a cyclic number.

It is not a de Polignac number, because 133144031551 - 2⁵ = 133144031519 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 (133144031557) 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, 936175 + ... + 1068976.

It is an arithmetic number, because the mean of its divisors is an integer number (17372636928).

Almost surely, 2^133144031551 is an apocalyptic number.

133144031551 is a deficient number, since it is larger than the sum of its proper divisors (5837063873).

133144031551 is a wasteful number, since it uses less digits than its factorization.

133144031551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008061.

The product of its (nonzero) digits is 10800, while the sum is 31.

Adding to 133144031551 its reverse (155130441331), we get a palindrome (288274472882).

The spelling of 133144031551 in words is "one hundred thirty-three billion, one hundred forty-four million, thirty-one thousand, five hundred fifty-one".