1005010155 has 12 divisors (see below), whose sum is σ = 1742017680. Its totient is φ = 536005392.

The previous prime is 1005010141. The next prime is 1005010157. The reversal of 1005010155 is 5510105001.

1005010155 is a `hidden beast` number, since 10 + 0 + 501 + 0 + 155 = 666.

It is not a de Polignac number, because 1005010155 - 2²⁰ = 1003961579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1005010157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11166735 + ... + 11166824.

It is an arithmetic number, because the mean of its divisors is an integer number (145168140).

Almost surely, 2^1005010155 is an apocalyptic number.

1005010155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1005010155 is a deficient number, since it is larger than the sum of its proper divisors (737007525).

1005010155 is a wasteful number, since it uses less digits than its factorization.

1005010155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22333570 (or 22333567 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The square root of 1005010155 is about 31701.8951326257. The cubic root of 1005010155 is about 1001.6672703314.

Adding to 1005010155 its reverse (5510105001), we get a palindrome (6515115156).

The spelling of 1005010155 in words is "one billion, five million, ten thousand, one hundred fifty-five".