20243154 has 8 divisors (see below), whose sum is σ = 40486320. Its totient is φ = 6747716.

The previous prime is 20243149. The next prime is 20243161. The reversal of 20243154 is 45134202.

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

20243154 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20243154.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1686924 + ... + 1686935.

It is an arithmetic number, because the mean of its divisors is an integer number (5060790).

Almost surely, 2^20243154 is an apocalyptic number.

20243154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20243154 is a wasteful number, since it uses less digits than its factorization.

20243154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3373864.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 20243154 is about 4499.2392690320. The cubic root of 20243154 is about 272.5373693946.

Adding to 20243154 its reverse (45134202), we get a palindrome (65377356).

The spelling of 20243154 in words is "twenty million, two hundred forty-three thousand, one hundred fifty-four".