133145430555 has 32 divisors (see below), whose sum is σ = 217824966720. Its totient is φ = 69423011840.

The previous prime is 133145430529. The next prime is 133145430571. The reversal of 133145430555 is 555034541331.

It is not a de Polignac number, because 133145430555 - 2¹² = 133145426459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74610 + ... + 521399.

It is an arithmetic number, because the mean of its divisors is an integer number (6807030210).

Almost surely, 2^133145430555 is an apocalyptic number.

133145430555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133145430555 is a deficient number, since it is larger than the sum of its proper divisors (84679536165).

133145430555 is a wasteful number, since it uses less digits than its factorization.

133145430555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596351.

The product of its (nonzero) digits is 270000, while the sum is 39.

Adding to 133145430555 its reverse (555034541331), we get a palindrome (688179971886).

The spelling of 133145430555 in words is "one hundred thirty-three billion, one hundred forty-five million, four hundred thirty thousand, five hundred fifty-five".