2154012411 has 4 divisors (see below), whose sum is σ = 2872016552. Its totient is φ = 1436008272.

The previous prime is 2154012409. The next prime is 2154012467. The reversal of 2154012411 is 1142104512.

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

It is not a de Polignac number, because 2154012411 - 2¹ = 2154012409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154012481) 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 3 ways as a sum of consecutive naturals, for example, 359002066 + ... + 359002071.

It is an arithmetic number, because the mean of its divisors is an integer number (718004138).

Almost surely, 2^2154012411 is an apocalyptic number.

2154012411 is a deficient number, since it is larger than the sum of its proper divisors (718004141).

2154012411 is an equidigital number, since it uses as much as digits as its factorization.

2154012411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718004140.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 2154012411 is about 46411.3392502306. The cubic root of 2154012411 is about 1291.4652762915.

Adding to 2154012411 its reverse (1142104512), we get a palindrome (3296116923).

The spelling of 2154012411 in words is "two billion, one hundred fifty-four million, twelve thousand, four hundred eleven".