2119597155 has 72 divisors (see below), whose sum is σ = 4187991600. Its totient is φ = 988505856.

The previous prime is 2119597099. The next prime is 2119597157. The reversal of 2119597155 is 5517959112.

It is a happy number.

2119597155 is a `hidden beast` number, since 2 + 1 + 1 + 9 + 597 + 1 + 55 = 666.

It is not a de Polignac number, because 2119597155 - 2⁶ = 2119597091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2119597155.

It is not an unprimeable number, because it can be changed into a prime (2119597157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 137161 + ... + 151829.

It is an arithmetic number, because the mean of its divisors is an integer number (58166550).

Almost surely, 2^2119597155 is an apocalyptic number.

2119597155 is a deficient number, since it is larger than the sum of its proper divisors (2068394445).

2119597155 is a wasteful number, since it uses less digits than its factorization.

2119597155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14725 (or 14709 counting only the distinct ones).

The product of its digits is 141750, while the sum is 45.

The square root of 2119597155 is about 46039.0829078947. The cubic root of 2119597155 is about 1284.5502834636.

The spelling of 2119597155 in words is "two billion, one hundred nineteen million, five hundred ninety-seven thousand, one hundred fifty-five".