20154741 has 8 divisors (see below), whose sum is σ = 28453824. Its totient is φ = 12646080.

The previous prime is 20154727. The next prime is 20154767. The reversal of 20154741 is 14745102.

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

It is not a de Polignac number, because 20154741 - 2⁵ = 20154709 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20154781) 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, 197545 + ... + 197646.

It is an arithmetic number, because the mean of its divisors is an integer number (3556728).

Almost surely, 2^20154741 is an apocalyptic number.

It is an amenable number.

20154741 is a deficient number, since it is larger than the sum of its proper divisors (8299083).

20154741 is a wasteful number, since it uses less digits than its factorization.

20154741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395211.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 20154741 is about 4489.4031897347. The cubic root of 20154741 is about 272.1400167596.

Adding to 20154741 its reverse (14745102), we get a palindrome (34899843).

The spelling of 20154741 in words is "twenty million, one hundred fifty-four thousand, seven hundred forty-one".