144413431 has 4 divisors (see below), whose sum is σ = 144437632. Its totient is φ = 144389232.

The previous prime is 144413387. The next prime is 144413473. The reversal of 144413431 is 134314441.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 144413431 - 2¹¹ = 144411383 is a prime.

It is a super-2 number, since 2×144413431² = 41710478106383522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144413396 and 144413405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144413131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3931 + ... + 17443.

It is an arithmetic number, because the mean of its divisors is an integer number (36109408).

Almost surely, 2^144413431 is an apocalyptic number.

144413431 is a deficient number, since it is larger than the sum of its proper divisors (24201).

144413431 is a wasteful number, since it uses less digits than its factorization.

144413431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24200.

The product of its digits is 2304, while the sum is 25.

The square root of 144413431 is about 12017.2139450041. The cubic root of 144413431 is about 524.6494179451.

Adding to 144413431 its reverse (134314441), we get a palindrome (278727872).

The spelling of 144413431 in words is "one hundred forty-four million, four hundred thirteen thousand, four hundred thirty-one".