155229171 has 16 divisors (see below), whose sum is σ = 215489184. Its totient is φ = 99304704.

The previous prime is 155229161. The next prime is 155229211. The reversal of 155229171 is 171922551.

155229171 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 155229171 - 2¹¹ = 155227123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155229101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1476 + ... + 17681.

It is an arithmetic number, because the mean of its divisors is an integer number (13468074).

Almost surely, 2^155229171 is an apocalyptic number.

155229171 is a deficient number, since it is larger than the sum of its proper divisors (60260013).

155229171 is a wasteful number, since it uses less digits than its factorization.

155229171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19270.

The product of its digits is 6300, while the sum is 33.

The square root of 155229171 is about 12459.0999273623. The cubic root of 155229171 is about 537.4331437307.

The spelling of 155229171 in words is "one hundred fifty-five million, two hundred twenty-nine thousand, one hundred seventy-one".