2116012154 has 4 divisors (see below), whose sum is σ = 3174018234. Its totient is φ = 1058006076.

The previous prime is 2116012147. The next prime is 2116012181. The reversal of 2116012154 is 4512106112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1233625129 + 882387025 = 35123^2 + 29705^2 .

It is a Curzon number.

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 as a sum of consecutive naturals, namely, 529003037 + ... + 529003040.

Almost surely, 2^2116012154 is an apocalyptic number.

2116012154 is a deficient number, since it is larger than the sum of its proper divisors (1058006080).

2116012154 is a wasteful number, since it uses less digits than its factorization.

2116012154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058006079.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 2116012154 is about 46000.1321085059. The cubic root of 2116012154 is about 1283.8256626265.

Adding to 2116012154 its reverse (4512106112), we get a palindrome (6628118266).

The spelling of 2116012154 in words is "two billion, one hundred sixteen million, twelve thousand, one hundred fifty-four".