2154344211 has 12 divisors (see below), whose sum is σ = 3113991088. Its totient is φ = 1435232304.

The previous prime is 2154344207. The next prime is 2154344219. The reversal of 2154344211 is 1124434512.

2154344211 is a `hidden beast` number, since 2 + 15 + 434 + 4 + 211 = 666.

It is not a de Polignac number, because 2154344211 - 2² = 2154344207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154344219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69295 + ... + 95448.

Almost surely, 2^2154344211 is an apocalyptic number.

2154344211 is a deficient number, since it is larger than the sum of its proper divisors (959646877).

2154344211 is a wasteful number, since it uses less digits than its factorization.

2154344211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166202 (or 166199 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 2154344211 is about 46414.9136700695. The cubic root of 2154344211 is about 1291.5315845102.

Adding to 2154344211 its reverse (1124434512), we get a palindrome (3278778723).

The spelling of 2154344211 in words is "two billion, one hundred fifty-four million, three hundred forty-four thousand, two hundred eleven".