155475155 has 8 divisors (see below), whose sum is σ = 203531184. Its totient is φ = 113072800.

The previous prime is 155475127. The next prime is 155475167. The reversal of 155475155 is 551574551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 155475155 - 2⁶ = 155475091 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1413356 + ... + 1413465.

It is an arithmetic number, because the mean of its divisors is an integer number (25441398).

Almost surely, 2^155475155 is an apocalyptic number.

155475155 is a deficient number, since it is larger than the sum of its proper divisors (48056029).

155475155 is a wasteful number, since it uses less digits than its factorization.

155475155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826837.

The product of its digits is 87500, while the sum is 38.

The square root of 155475155 is about 12468.9676798041. The cubic root of 155475155 is about 537.7168751641.

It can be divided in two parts, 15547 and 5155, that added together give a palindrome (20702).

The spelling of 155475155 in words is "one hundred fifty-five million, four hundred seventy-five thousand, one hundred fifty-five".