155475 has 18 divisors (see below), whose sum is σ = 278876. Its totient is φ = 82800.

The previous prime is 155473. The next prime is 155501. The reversal of 155475 is 574551.

It is not a de Polignac number, because 155475 - 2¹ = 155473 is a prime.

It is a Duffinian number.

155475 is a lucky number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (155473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 121 + ... + 570.

2¹⁵⁵⁴⁷⁵ is an apocalyptic number.

155475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155475 is a deficient number, since it is larger than the sum of its proper divisors (123401).

155475 is a wasteful number, since it uses less digits than its factorization.

155475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707 (or 699 counting only the distinct ones).

The product of its digits is 3500, while the sum is 27.

The square root of 155475 is about 394.3031828428. The cubic root of 155475 is about 53.7716696473.

It can be divided in two parts, 155 and 475, that added together give a triangular number (630 = T₃₅).

The spelling of 155475 in words is "one hundred fifty-five thousand, four hundred seventy-five".