20614465 has 4 divisors (see below), whose sum is σ = 24737364. Its totient is φ = 16491568.

The previous prime is 20614457. The next prime is 20614469. The reversal of 20614465 is 56441602.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12645136 + 7969329 = 3556^2 + 2823^2 .

It is a cyclic number.

It is not a de Polignac number, because 20614465 - 2³ = 20614457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20614469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2061442 + ... + 2061451.

It is an arithmetic number, because the mean of its divisors is an integer number (6184341).

Almost surely, 2^20614465 is an apocalyptic number.

It is an amenable number.

20614465 is a deficient number, since it is larger than the sum of its proper divisors (4122899).

20614465 is an equidigital number, since it uses as much as digits as its factorization.

20614465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4122898.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 20614465 is about 4540.3155176706. The cubic root of 20614465 is about 274.1936267909.

The spelling of 20614465 in words is "twenty million, six hundred fourteen thousand, four hundred sixty-five".