20451314 has 8 divisors (see below), whose sum is σ = 33036780. Its totient is φ = 9439056.

The previous prime is 20451311. The next prime is 20451317. The reversal of 20451314 is 41315402.

It is an interprime number because it is at equal distance from previous prime (20451311) and next prime (20451317).

It can be written as a sum of positive squares in 2 ways, for example, as 20097289 + 354025 = 4483^2 + 595^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20451311) 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 3 ways as a sum of consecutive naturals, for example, 393269 + ... + 393320.

Almost surely, 2^20451314 is an apocalyptic number.

20451314 is a deficient number, since it is larger than the sum of its proper divisors (12585466).

20451314 is a wasteful number, since it uses less digits than its factorization.

20451314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786604.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20451314 is about 4522.3129038137. The cubic root of 20451314 is about 273.4683512336.

Adding to 20451314 its reverse (41315402), we get a palindrome (61766716).

The spelling of 20451314 in words is "twenty million, four hundred fifty-one thousand, three hundred fourteen".