2119231154 has 16 divisors (see below), whose sum is σ = 3243042360. Its totient is φ = 1038428160.

The previous prime is 2119231133. The next prime is 2119231157. The reversal of 2119231154 is 4511329112.

It can be written as a sum of positive squares in 4 ways, for example, as 1285581025 + 833650129 = 35855^2 + 28873^2 .

It is a super-2 number, since 2×2119231154² = 8982281368168343432, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2119231157) 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, 32567 + ... + 72794.

Almost surely, 2^2119231154 is an apocalyptic number.

2119231154 is a deficient number, since it is larger than the sum of its proper divisors (1123811206).

2119231154 is a wasteful number, since it uses less digits than its factorization.

2119231154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105565.

The product of its digits is 2160, while the sum is 29.

The square root of 2119231154 is about 46035.1078417331. The cubic root of 2119231154 is about 1284.4763427228.

The spelling of 2119231154 in words is "two billion, one hundred nineteen million, two hundred thirty-one thousand, one hundred fifty-four".