155173315 has 16 divisors (see below), whose sum is σ = 208093536. Its totient is φ = 110099200.

The previous prime is 155173309. The next prime is 155173327. The reversal of 155173315 is 513371551.

It is not a de Polignac number, because 155173315 - 2³ = 155173307 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32152 + ... + 36661.

It is an arithmetic number, because the mean of its divisors is an integer number (13005846).

Almost surely, 2^155173315 is an apocalyptic number.

155173315 is a deficient number, since it is larger than the sum of its proper divisors (52920221).

155173315 is a wasteful number, since it uses less digits than its factorization.

155173315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68870.

The product of its digits is 7875, while the sum is 31.

The square root of 155173315 is about 12456.8581512354. The cubic root of 155173315 is about 537.3686746047.

The spelling of 155173315 in words is "one hundred fifty-five million, one hundred seventy-three thousand, three hundred fifteen".