133031544455 has 4 divisors (see below), whose sum is σ = 159637853352. Its totient is φ = 106425235560.

The previous prime is 133031544449. The next prime is 133031544487. The reversal of 133031544455 is 554445130331.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 133031544455 - 2²² = 133027350151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13303154441 + ... + 13303154450.

It is an arithmetic number, because the mean of its divisors is an integer number (39909463338).

Almost surely, 2^133031544455 is an apocalyptic number.

133031544455 is a deficient number, since it is larger than the sum of its proper divisors (26606308897).

133031544455 is an equidigital number, since it uses as much as digits as its factorization.

133031544455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26606308896.

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 133031544455 its reverse (554445130331), we get a palindrome (687476674786).

The spelling of 133031544455 in words is "one hundred thirty-three billion, thirty-one million, five hundred forty-four thousand, four hundred fifty-five".