20146597 has 8 divisors (see below), whose sum is σ = 21470976. Its totient is φ = 18859632.

The previous prime is 20146591. The next prime is 20146627. The reversal of 20146597 is 79564102.

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

It is not a de Polignac number, because 20146597 - 2¹¹ = 20144549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20146591) 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 in 7 ways as a sum of consecutive naturals, for example, 8238 + ... + 10399.

It is an arithmetic number, because the mean of its divisors is an integer number (2683872).

Almost surely, 2^20146597 is an apocalyptic number.

It is an amenable number.

20146597 is a deficient number, since it is larger than the sum of its proper divisors (1324379).

20146597 is a wasteful number, since it uses less digits than its factorization.

20146597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18707.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 20146597 is about 4488.4960732967. The cubic root of 20146597 is about 272.1033569504.

The spelling of 20146597 in words is "twenty million, one hundred forty-six thousand, five hundred ninety-seven".