20071149 has 8 divisors (see below), whose sum is σ = 30584640. Its totient is φ = 11469216.

The previous prime is 20071147. The next prime is 20071159. The reversal of 20071149 is 94117002.

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

It is not a de Polignac number, because 20071149 - 2¹ = 20071147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20071141) 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, 477864 + ... + 477905.

It is an arithmetic number, because the mean of its divisors is an integer number (3823080).

Almost surely, 2^20071149 is an apocalyptic number.

It is an amenable number.

20071149 is a deficient number, since it is larger than the sum of its proper divisors (10513491).

20071149 is an equidigital number, since it uses as much as digits as its factorization.

20071149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955779.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 20071149 is about 4480.0835929701. The cubic root of 20071149 is about 271.7632608862.

The spelling of 20071149 in words is "twenty million, seventy-one thousand, one hundred forty-nine".