20148593 has 8 divisors (see below), whose sum is σ = 20569536. Its totient is φ = 19731600.

The previous prime is 20148581. The next prime is 20148613. The reversal of 20148593 is 39584102.

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

It is a cyclic number.

It is not a de Polignac number, because 20148593 - 2¹² = 20144497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20148503) 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, 10703 + ... + 12443.

It is an arithmetic number, because the mean of its divisors is an integer number (2571192).

Almost surely, 2^20148593 is an apocalyptic number.

It is an amenable number.

20148593 is a deficient number, since it is larger than the sum of its proper divisors (420943).

20148593 is a wasteful number, since it uses less digits than its factorization.

20148593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1975.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 20148593 is about 4488.7184139797. The cubic root of 20148593 is about 272.1123427585.

The spelling of 20148593 in words is "twenty million, one hundred forty-eight thousand, five hundred ninety-three".