20150073 has 16 divisors (see below), whose sum is σ = 29989440. Its totient is φ = 13371552.

The previous prime is 20150071. The next prime is 20150077. The reversal of 20150073 is 37005102.

It is not a de Polignac number, because 20150073 - 2¹ = 20150071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20150071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4690 + ... + 7892.

It is an arithmetic number, because the mean of its divisors is an integer number (1874340).

Almost surely, 2^20150073 is an apocalyptic number.

It is an amenable number.

20150073 is a deficient number, since it is larger than the sum of its proper divisors (9839367).

20150073 is a wasteful number, since it uses less digits than its factorization.

20150073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445 (or 3439 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 20150073 is about 4488.8832686984. The cubic root of 20150073 is about 272.1190051990.

Adding to 20150073 its reverse (37005102), we get a palindrome (57155175).

The spelling of 20150073 in words is "twenty million, one hundred fifty thousand, seventy-three".