2130501155 has 32 divisors (see below), whose sum is σ = 2729655936. Its totient is φ = 1592740864.

The previous prime is 2130501137. The next prime is 2130501157. The reversal of 2130501155 is 5511050312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2130501155 - 2⁸ = 2130500899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

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 2130501155.

It is not an unprimeable number, because it can be changed into a prime (2130501157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1785239 + ... + 1786431.

It is an arithmetic number, because the mean of its divisors is an integer number (85301748).

Almost surely, 2^2130501155 is an apocalyptic number.

2130501155 is a deficient number, since it is larger than the sum of its proper divisors (599154781).

2130501155 is a wasteful number, since it uses less digits than its factorization.

2130501155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 2130501155 is about 46157.3521229284. The cubic root of 2130501155 is about 1286.7492525837.

Adding to 2130501155 its reverse (5511050312), we get a palindrome (7641551467).

The spelling of 2130501155 in words is "two billion, one hundred thirty million, five hundred one thousand, one hundred fifty-five".