2152421314 has 4 divisors (see below), whose sum is σ = 3228631974. Its totient is φ = 1076210656.

The previous prime is 2152421291. The next prime is 2152421329. The reversal of 2152421314 is 4131242512.

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., 1097795689 + 1054625625 = 33133^2 + 32475^2 .

It is a super-2 number, since 2×2152421314² = 9265835025922973192, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 538105327 + ... + 538105330.

Almost surely, 2^2152421314 is an apocalyptic number.

2152421314 is a deficient number, since it is larger than the sum of its proper divisors (1076210660).

2152421314 is a wasteful number, since it uses less digits than its factorization.

2152421314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076210659.

The product of its digits is 1920, while the sum is 25.

The square root of 2152421314 is about 46394.1948308191. The cubic root of 2152421314 is about 1291.1472105470.

Adding to 2152421314 its reverse (4131242512), we get a palindrome (6283663826).

The spelling of 2152421314 in words is "two billion, one hundred fifty-two million, four hundred twenty-one thousand, three hundred fourteen".