144434115 has 72 divisors (see below), whose sum is σ = 300763008. Its totient is φ = 63866880.

The previous prime is 144434107. The next prime is 144434117. The reversal of 144434115 is 511434441.

It is not a de Polignac number, because 144434115 - 2³ = 144434107 is a prime.

It is a super-2 number, since 2×144434115² = 41722427151666450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144434117) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 67299 + ... + 69411.

It is an arithmetic number, because the mean of its divisors is an integer number (4177264).

Almost surely, 2^144434115 is an apocalyptic number.

144434115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144434115 is an abundant number, since it is smaller than the sum of its proper divisors (156328893).

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

144434115 is a wasteful number, since it uses less digits than its factorization.

144434115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169 (or 2159 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 144434115 is about 12018.0745129992. The cubic root of 144434115 is about 524.6744648548.

Adding to 144434115 its reverse (511434441), we get a palindrome (655868556).

The spelling of 144434115 in words is "one hundred forty-four million, four hundred thirty-four thousand, one hundred fifteen".