20532154 has 8 divisors (see below), whose sum is σ = 31033728. Its totient is φ = 10187580.

The previous prime is 20532143. The next prime is 20532157. The reversal of 20532154 is 45123502.

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

It is not an unprimeable number, because it can be changed into a prime (20532157) 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, 38922 + ... + 39445.

It is an arithmetic number, because the mean of its divisors is an integer number (3879216).

Almost surely, 2^20532154 is an apocalyptic number.

20532154 is a deficient number, since it is larger than the sum of its proper divisors (10501574).

20532154 is a wasteful number, since it uses less digits than its factorization.

20532154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78500.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 20532154 is about 4531.2419930964. The cubic root of 20532154 is about 273.8281996174.

Adding to 20532154 its reverse (45123502), we get a palindrome (65655656).

The spelling of 20532154 in words is "twenty million, five hundred thirty-two thousand, one hundred fifty-four".