20652151 has 8 divisors (see below), whose sum is σ = 22783824. Its totient is φ = 18598080.

The previous prime is 20652133. The next prime is 20652157. The reversal of 20652151 is 15125602.

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

It is a cyclic number.

It is not a de Polignac number, because 20652151 - 2⁹ = 20651639 is a prime.

It is a super-2 number, since 2×20652151² = 853022681853602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20652157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18841 + ... + 19906.

It is an arithmetic number, because the mean of its divisors is an integer number (2847978).

Almost surely, 2^20652151 is an apocalyptic number.

20652151 is a deficient number, since it is larger than the sum of its proper divisors (2131673).

20652151 is a wasteful number, since it uses less digits than its factorization.

20652151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38801.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 20652151 is about 4544.4637747483. The cubic root of 20652151 is about 274.3606126193.

Adding to 20652151 its reverse (15125602), we get a palindrome (35777753).

The spelling of 20652151 in words is "twenty million, six hundred fifty-two thousand, one hundred fifty-one".