155035133 has 4 divisors (see below), whose sum is σ = 169129248. Its totient is φ = 140941020.

The previous prime is 155035057. The next prime is 155035147. The reversal of 155035133 is 331530551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 155035133 - 2¹⁶ = 154969597 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 (155032133) 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, 7047041 + ... + 7047062.

It is an arithmetic number, because the mean of its divisors is an integer number (42282312).

Almost surely, 2^155035133 is an apocalyptic number.

It is an amenable number.

155035133 is a deficient number, since it is larger than the sum of its proper divisors (14094115).

155035133 is a wasteful number, since it uses less digits than its factorization.

155035133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14094114.

The product of its (nonzero) digits is 3375, while the sum is 26.

The square root of 155035133 is about 12451.3104932774. The cubic root of 155035133 is about 537.2091181105.

Adding to 155035133 its reverse (331530551), we get a palindrome (486565684).

The spelling of 155035133 in words is "one hundred fifty-five million, thirty-five thousand, one hundred thirty-three".