155000133 has 12 divisors (see below), whose sum is σ = 226724160. Its totient is φ = 102024936.

The previous prime is 155000107. The next prime is 155000137. The reversal of 155000133 is 331000551.

It is a happy number.

155000133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155000133 - 2¹⁷ = 154869061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155000137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108291 + ... + 109712.

It is an arithmetic number, because the mean of its divisors is an integer number (18893680).

Almost surely, 2^155000133 is an apocalyptic number.

It is an amenable number.

155000133 is a deficient number, since it is larger than the sum of its proper divisors (71724027).

155000133 is a wasteful number, since it uses less digits than its factorization.

155000133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218088 (or 218085 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 155000133 is about 12449.9049393961. The cubic root of 155000133 is about 537.1686891362.

Adding to 155000133 its reverse (331000551), we get a palindrome (486000684).

The spelling of 155000133 in words is "one hundred fifty-five million, one hundred thirty-three", and thus it is an aban number.