155345065 has 8 divisors (see below), whose sum is σ = 197379720. Its totient is φ = 116965632.

The previous prime is 155345051. The next prime is 155345081. The reversal of 155345065 is 560543551.

It can be written as a sum of positive squares in 4 ways, for example, as 34058896 + 121286169 = 5836^2 + 11013^2 .

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 155345065 - 2⁵ = 155345033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 155345065.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 913710 + ... + 913879.

It is an arithmetic number, because the mean of its divisors is an integer number (24672465).

Almost surely, 2^155345065 is an apocalyptic number.

It is an amenable number.

155345065 is a deficient number, since it is larger than the sum of its proper divisors (42034655).

155345065 is a wasteful number, since it uses less digits than its factorization.

155345065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827611.

The product of its (nonzero) digits is 45000, while the sum is 34.

The square root of 155345065 is about 12463.7500376091. The cubic root of 155345065 is about 537.5668595395.

The spelling of 155345065 in words is "one hundred fifty-five million, three hundred forty-five thousand, sixty-five".