155015005 has 16 divisors (see below), whose sum is σ = 192942000. Its totient is φ = 119418880.

The previous prime is 155014997. The next prime is 155015011. The reversal of 155015005 is 500510551.

It can be written as a sum of positive squares in 8 ways, for example, as 21427641 + 133587364 = 4629^2 + 11558^2 .

It is not a de Polignac number, because 155015005 - 2³ = 155014997 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 63915 + ... + 66295.

It is an arithmetic number, because the mean of its divisors is an integer number (12058875).

Almost surely, 2^155015005 is an apocalyptic number.

It is an amenable number.

155015005 is a deficient number, since it is larger than the sum of its proper divisors (37926995).

155015005 is a wasteful number, since it uses less digits than its factorization.

155015005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2864.

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

The square root of 155015005 is about 12450.5021987067. The cubic root of 155015005 is about 537.1858687285.

Adding to 155015005 its reverse (500510551), we get a palindrome (655525556).

The spelling of 155015005 in words is "one hundred fifty-five million, fifteen thousand, five".