144115551 has 16 divisors (see below), whose sum is σ = 224742400. Its totient is φ = 91020024.

The previous prime is 144115537. The next prime is 144115571. The reversal of 144115551 is 155511441.

It is not a de Polignac number, because 144115551 - 2¹¹ = 144113503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144115571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139951 + ... + 140976.

It is an arithmetic number, because the mean of its divisors is an integer number (14046400).

Almost surely, 2^144115551 is an apocalyptic number.

144115551 is a deficient number, since it is larger than the sum of its proper divisors (80626849).

144115551 is a wasteful number, since it uses less digits than its factorization.

144115551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280955 (or 280949 counting only the distinct ones).

The product of its digits is 2000, while the sum is 27.

The square root of 144115551 is about 12004.8136595284. The cubic root of 144115551 is about 524.2884401031.

Adding to 144115551 its reverse (155511441), we get a palindrome (299626992).

The spelling of 144115551 in words is "one hundred forty-four million, one hundred fifteen thousand, five hundred fifty-one".