2543156122 has 8 divisors (see below), whose sum is σ = 4108175316. Its totient is φ = 1173764352.

The previous prime is 2543156117. The next prime is 2543156167. The reversal of 2543156122 is 2216513452.

It can be written as a sum of positive squares in 2 ways, for example, as 2122537041 + 420619081 = 46071^2 + 20509^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 48906823 + ... + 48906874.

Almost surely, 2^2543156122 is an apocalyptic number.

2543156122 is a deficient number, since it is larger than the sum of its proper divisors (1565019194).

2543156122 is a wasteful number, since it uses less digits than its factorization.

2543156122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97813712.

The product of its digits is 14400, while the sum is 31.

The square root of 2543156122 is about 50429.7146729981. The cubic root of 2543156122 is about 1364.9738793769.

Adding to 2543156122 its reverse (2216513452), we get a palindrome (4759669574).

The spelling of 2543156122 in words is "two billion, five hundred forty-three million, one hundred fifty-six thousand, one hundred twenty-two".