20652154 has 4 divisors (see below), whose sum is σ = 30978234. Its totient is φ = 10326076.

The previous prime is 20652133. The next prime is 20652157. The reversal of 20652154 is 45125602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19492225 + 1159929 = 4415^2 + 1077^2 .

It is a super-2 number, since 2×20652154² = 853022929679432, which contains 22 as substring.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5163037 + ... + 5163040.

Almost surely, 2^20652154 is an apocalyptic number.

20652154 is a deficient number, since it is larger than the sum of its proper divisors (10326080).

20652154 is a wasteful number, since it uses less digits than its factorization.

20652154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10326079.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 20652154 is about 4544.4641048203. The cubic root of 20652154 is about 274.3606259042.

Adding to 20652154 its reverse (45125602), we get a palindrome (65777756).

The spelling of 20652154 in words is "twenty million, six hundred fifty-two thousand, one hundred fifty-four".