20652130 has 8 divisors (see below), whose sum is σ = 37173852. Its totient is φ = 8260848.

The previous prime is 20652109. The next prime is 20652133. The reversal of 20652130 is 3125602.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20259001 + 393129 = 4501^2 + 627^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 20652098 and 20652107.

It is not an unprimeable number, because it can be changed into a prime (20652133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1032597 + ... + 1032616.

Almost surely, 2^20652130 is an apocalyptic number.

20652130 is a deficient number, since it is larger than the sum of its proper divisors (16521722).

20652130 is a wasteful number, since it uses less digits than its factorization.

20652130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065220.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 20652130 is about 4544.4614642441. The cubic root of 20652130 is about 274.3605196254.

Adding to 20652130 its reverse (3125602), we get a palindrome (23777732).

The spelling of 20652130 in words is "twenty million, six hundred fifty-two thousand, one hundred thirty".