155445155 has 8 divisors (see below), whose sum is σ = 194644512. Its totient is φ = 118949248.

The previous prime is 155445151. The next prime is 155445163. The reversal of 155445155 is 551544551.

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

It is a cyclic number.

It is not a de Polignac number, because 155445155 - 2² = 155445151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155445151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675734 + ... + 675963.

It is an arithmetic number, because the mean of its divisors is an integer number (24330564).

Almost surely, 2^155445155 is an apocalyptic number.

155445155 is a deficient number, since it is larger than the sum of its proper divisors (39199357).

155445155 is a wasteful number, since it uses less digits than its factorization.

155445155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351725.

The product of its digits is 50000, while the sum is 35.

The square root of 155445155 is about 12467.7646352504. The cubic root of 155445155 is about 537.6822875501.

The spelling of 155445155 in words is "one hundred fifty-five million, four hundred forty-five thousand, one hundred fifty-five".