20214137 has 2 divisors, whose sum is σ = 20214138. Its totient is φ = 20214136.

The previous prime is 20214127. The next prime is 20214143. The reversal of 20214137 is 73141202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20214016 + 121 = 4496^2 + 11^2 .

It is a cyclic number.

It is not a de Polignac number, because 20214137 - 2²⁰ = 19165561 is a prime.

It is a super-2 number, since 2×20214137² = 817222669309538, which contains 22 as substring.

It is equal to p_1283330 and since 20214137 and 1283330 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (20214127) 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 as a sum of consecutive naturals, namely, 10107068 + 10107069.

It is an arithmetic number, because the mean of its divisors is an integer number (10107069).

Almost surely, 2^20214137 is an apocalyptic number.

It is an amenable number.

20214137 is a deficient number, since it is larger than the sum of its proper divisors (1).

20214137 is an equidigital number, since it uses as much as digits as its factorization.

20214137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 20214137 is about 4496.0134563856. The cubic root of 20214137 is about 272.4070866916.

Adding to 20214137 its reverse (73141202), we get a palindrome (93355339).

The spelling of 20214137 in words is "twenty million, two hundred fourteen thousand, one hundred thirty-seven".