144427967 has 4 divisors (see below), whose sum is σ = 144457656. Its totient is φ = 144398280.

The previous prime is 144427951. The next prime is 144427979. The reversal of 144427967 is 769724441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144427967 - 2⁴ = 144427951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144427267) 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, 5648 + ... + 17909.

It is an arithmetic number, because the mean of its divisors is an integer number (36114414).

Almost surely, 2^144427967 is an apocalyptic number.

144427967 is a deficient number, since it is larger than the sum of its proper divisors (29689).

144427967 is an equidigital number, since it uses as much as digits as its factorization.

144427967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29688.

The product of its digits is 338688, while the sum is 44.

The square root of 144427967 is about 12017.8187288709. The cubic root of 144427967 is about 524.6670202969.

The spelling of 144427967 in words is "one hundred forty-four million, four hundred twenty-seven thousand, nine hundred sixty-seven".