20214529 has 2 divisors, whose sum is σ = 20214530. Its totient is φ = 20214528.

The previous prime is 20214527. The next prime is 20214541. The reversal of 20214529 is 92541202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18318400 + 1896129 = 4280^2 + 1377^2 .

It is a cyclic number.

It is not a de Polignac number, because 20214529 - 2¹ = 20214527 is a prime.

Together with 20214527, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20214527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10107264 + 10107265.

It is an arithmetic number, because the mean of its divisors is an integer number (10107265).

Almost surely, 2^20214529 is an apocalyptic number.

It is an amenable number.

20214529 is a deficient number, since it is larger than the sum of its proper divisors (1).

20214529 is an equidigital number, since it uses as much as digits as its factorization.

20214529 is an evil number, because the sum of its binary digits is even.

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

The square root of 20214529 is about 4496.0570503498. The cubic root of 20214529 is about 272.4088475531.

The spelling of 20214529 in words is "twenty million, two hundred fourteen thousand, five hundred twenty-nine".