20152073 has 2 divisors, whose sum is σ = 20152074. Its totient is φ = 20152072.

The previous prime is 20152063. The next prime is 20152127. The reversal of 20152073 is 37025102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19245769 + 906304 = 4387^2 + 952^2 .

It is a cyclic number.

It is not a de Polignac number, because 20152073 - 2¹⁸ = 19889929 is a prime.

It is a super-2 number, since 2×20152073² = 812212092394658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20152063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10076036 + 10076037.

It is an arithmetic number, because the mean of its divisors is an integer number (10076037).

Almost surely, 2^20152073 is an apocalyptic number.

It is an amenable number.

20152073 is a deficient number, since it is larger than the sum of its proper divisors (1).

20152073 is an equidigital number, since it uses as much as digits as its factorization.

20152073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 20152073 is about 4489.1060357269. The cubic root of 20152073 is about 272.1280079787.

Adding to 20152073 its reverse (37025102), we get a palindrome (57177175).

The spelling of 20152073 in words is "twenty million, one hundred fifty-two thousand, seventy-three".