20144245151 has 4 divisors (see below), whose sum is σ = 21204468600. Its totient is φ = 19084021704.

The previous prime is 20144245123. The next prime is 20144245157. The reversal of 20144245151 is 15154244102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20144245151 - 2¹⁸ = 20143983007 is a prime.

It is a super-2 number, since 2×20144245151² (a number of 21 digits) 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 (20144245157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530111696 + ... + 530111733.

It is an arithmetic number, because the mean of its divisors is an integer number (5301117150).

Almost surely, 2^20144245151 is an apocalyptic number.

20144245151 is a deficient number, since it is larger than the sum of its proper divisors (1060223449).

20144245151 is a wasteful number, since it uses less digits than its factorization.

20144245151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060223448.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 20144245151 its reverse (15154244102), we get a palindrome (35298489253).

The spelling of 20144245151 in words is "twenty billion, one hundred forty-four million, two hundred forty-five thousand, one hundred fifty-one".