144367997 has 8 divisors (see below), whose sum is σ = 147273600. Its totient is φ = 141489504.

The previous prime is 144367957. The next prime is 144367999. The reversal of 144367997 is 799763441.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144367997 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 (144367999) 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, 4154 + ... + 17492.

It is an arithmetic number, because the mean of its divisors is an integer number (18409200).

Almost surely, 2^144367997 is an apocalyptic number.

It is an amenable number.

144367997 is a deficient number, since it is larger than the sum of its proper divisors (2905603).

144367997 is a wasteful number, since it uses less digits than its factorization.

144367997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13555.

The product of its digits is 1143072, while the sum is 50.

The square root of 144367997 is about 12015.3234246940. The cubic root of 144367997 is about 524.5943920801.

The spelling of 144367997 in words is "one hundred forty-four million, three hundred sixty-seven thousand, nine hundred ninety-seven".