20364513 has 8 divisors (see below), whose sum is σ = 29241408. Its totient is φ = 12531984.

The previous prime is 20364511. The next prime is 20364517. The reversal of 20364513 is 31546302.

It is a happy number.

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

It is not a de Polignac number, because 20364513 - 2¹ = 20364511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20364511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261045 + ... + 261122.

It is an arithmetic number, because the mean of its divisors is an integer number (3655176).

Almost surely, 2^20364513 is an apocalyptic number.

It is an amenable number.

20364513 is a deficient number, since it is larger than the sum of its proper divisors (8876895).

20364513 is a wasteful number, since it uses less digits than its factorization.

20364513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522183.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 20364513 is about 4512.7057293823. The cubic root of 20364513 is about 273.0809109556.

The spelling of 20364513 in words is "twenty million, three hundred sixty-four thousand, five hundred thirteen".