20195073 has 24 divisors (see below), whose sum is σ = 29978208. Its totient is φ = 13096512.

The previous prime is 20195059. The next prime is 20195089. The reversal of 20195073 is 37059102.

It is not a de Polignac number, because 20195073 - 2⁴ = 20195057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20195573) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64365 + ... + 64677.

It is an arithmetic number, because the mean of its divisors is an integer number (1249092).

Almost surely, 2^20195073 is an apocalyptic number.

It is an amenable number.

20195073 is a deficient number, since it is larger than the sum of its proper divisors (9783135).

20195073 is a wasteful number, since it uses less digits than its factorization.

20195073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 20195073 is about 4493.8928558656. The cubic root of 20195073 is about 272.3214238356.

The spelling of 20195073 in words is "twenty million, one hundred ninety-five thousand, seventy-three".