155000155 has 16 divisors (see below), whose sum is σ = 193920768. Its totient is φ = 118800000.

The previous prime is 155000149. The next prime is 155000161. The reversal of 155000155 is 551000551.

It is an interprime number because it is at equal distance from previous prime (155000149) and next prime (155000161).

It is not a de Polignac number, because 155000155 - 2¹⁷ = 154869083 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, 10705 + ... + 20605.

It is an arithmetic number, because the mean of its divisors is an integer number (12120048).

Almost surely, 2^155000155 is an apocalyptic number.

155000155 is a deficient number, since it is larger than the sum of its proper divisors (38920613).

155000155 is a wasteful number, since it uses less digits than its factorization.

155000155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10038.

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 155000155 is about 12449.9058229370. The cubic root of 155000155 is about 537.1687145506.

The spelling of 155000155 in words is "one hundred fifty-five million, one hundred fifty-five", and thus it is an aban number.