144428711 has 8 divisors (see below), whose sum is σ = 165594624. Its totient is φ = 123396120.

The previous prime is 144428699. The next prime is 144428737. The reversal of 144428711 is 117824441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144428711 - 2¹⁴ = 144412327 is a prime.

It is a super-2 number, since 2×144428711² = 41719305122243042, which 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 (144428741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30995 + ... + 35348.

It is an arithmetic number, because the mean of its divisors is an integer number (20699328).

Almost surely, 2^144428711 is an apocalyptic number.

144428711 is a deficient number, since it is larger than the sum of its proper divisors (21165913).

144428711 is an equidigital number, since it uses as much as digits as its factorization.

144428711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66661.

The product of its digits is 7168, while the sum is 32.

The square root of 144428711 is about 12017.8496828676. The cubic root of 144428711 is about 524.6679212111.

The spelling of 144428711 in words is "one hundred forty-four million, four hundred twenty-eight thousand, seven hundred eleven".