155156065 has 8 divisors (see below), whose sum is σ = 186476328. Its totient is φ = 123932160.

The previous prime is 155156063. The next prime is 155156077. The reversal of 155156065 is 560651551.

It can be written as a sum of positive squares in 4 ways, for example, as 24373969 + 130782096 = 4937^2 + 11436^2 .

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

It is not a de Polignac number, because 155156065 - 2¹ = 155156063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155156065.

It is not an unprimeable number, because it can be changed into a prime (155156063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20496 + ... + 27025.

It is an arithmetic number, because the mean of its divisors is an integer number (23309541).

Almost surely, 2^155156065 is an apocalyptic number.

It is an amenable number.

155156065 is a deficient number, since it is larger than the sum of its proper divisors (31320263).

155156065 is an equidigital number, since it uses as much as digits as its factorization.

155156065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48179.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 155156065 is about 12456.1657423141. The cubic root of 155156065 is about 537.3487614876.

The spelling of 155156065 in words is "one hundred fifty-five million, one hundred fifty-six thousand, sixty-five".