2154131314 has 4 divisors (see below), whose sum is σ = 3231196974. Its totient is φ = 1077065656.

The previous prime is 2154131261. The next prime is 2154131321. The reversal of 2154131314 is 4131314512.

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., 1969850689 + 184280625 = 44383^2 + 13575^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538532827 + ... + 538532830.

Almost surely, 2^2154131314 is an apocalyptic number.

2154131314 is a deficient number, since it is larger than the sum of its proper divisors (1077065660).

2154131314 is a wasteful number, since it uses less digits than its factorization.

2154131314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077065659.

The product of its digits is 1440, while the sum is 25.

The square root of 2154131314 is about 46412.6202018373. The cubic root of 2154131314 is about 1291.4890391181.

Adding to 2154131314 its reverse (4131314512), we get a palindrome (6285445826).

The spelling of 2154131314 in words is "two billion, one hundred fifty-four million, one hundred thirty-one thousand, three hundred fourteen".