144911431 has 16 divisors (see below), whose sum is σ = 173376000. Its totient is φ = 118423008.

The previous prime is 144911413. The next prime is 144911449. The reversal of 144911431 is 134119441.

It is an interprime number because it is at equal distance from previous prime (144911413) and next prime (144911449).

It is a cyclic number.

It is not a de Polignac number, because 144911431 - 2⁵ = 144911399 is a prime.

It is a super-2 number, since 2×144911431² = 41998645668935522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144911431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144911731) 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, 54900 + ... + 57478.

It is an arithmetic number, because the mean of its divisors is an integer number (10836000).

Almost surely, 2^144911431 is an apocalyptic number.

144911431 is a deficient number, since it is larger than the sum of its proper divisors (28464569).

144911431 is a wasteful number, since it uses less digits than its factorization.

144911431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2958.

The product of its digits is 1728, while the sum is 28.

The square root of 144911431 is about 12037.9163894754. The cubic root of 144911431 is about 525.2517987905.

It can be divided in two parts, 1449 and 11431, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 144911431 in words is "one hundred forty-four million, nine hundred eleven thousand, four hundred thirty-one".