155132109 has 24 divisors (see below), whose sum is σ = 244931232. Its totient is φ = 93834720.

The previous prime is 155132077. The next prime is 155132129. The reversal of 155132109 is 901231551.

155132109 is a `hidden beast` number, since 1 + 551 + 3 + 2 + 109 = 666.

155132109 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 155132109 - 2⁵ = 155132077 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155132129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62439 + ... + 64875.

It is an arithmetic number, because the mean of its divisors is an integer number (10205468).

Almost surely, 2^155132109 is an apocalyptic number.

It is an amenable number.

155132109 is a deficient number, since it is larger than the sum of its proper divisors (89799123).

155132109 is a wasteful number, since it uses less digits than its factorization.

155132109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097 (or 3094 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 155132109 is about 12455.2040930689. The cubic root of 155132109 is about 537.3211046259.

The spelling of 155132109 in words is "one hundred fifty-five million, one hundred thirty-two thousand, one hundred nine".