20614459 has 4 divisors (see below), whose sum is σ = 20649816. Its totient is φ = 20579104.

The previous prime is 20614457. The next prime is 20614469. The reversal of 20614459 is 95441602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20614459 - 2¹ = 20614457 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20614459.

It is not an unprimeable number, because it can be changed into a prime (20614453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16789 + ... + 17974.

It is an arithmetic number, because the mean of its divisors is an integer number (5162454).

Almost surely, 2^20614459 is an apocalyptic number.

20614459 is a deficient number, since it is larger than the sum of its proper divisors (35357).

20614459 is an equidigital number, since it uses as much as digits as its factorization.

20614459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35356.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 20614459 is about 4540.3148569235. The cubic root of 20614459 is about 274.1936001889.

The spelling of 20614459 in words is "twenty million, six hundred fourteen thousand, four hundred fifty-nine".