144700397 has 4 divisors (see below), whose sum is σ = 144817500. Its totient is φ = 144583296.

The previous prime is 144700363. The next prime is 144700411. The reversal of 144700397 is 793007441.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53421481 + 91278916 = 7309^2 + 9554^2 .

It is a cyclic number.

It is not a de Polignac number, because 144700397 - 2²⁰ = 143651821 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 (144700597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56678 + ... + 59175.

It is an arithmetic number, because the mean of its divisors is an integer number (36204375).

Almost surely, 2^144700397 is an apocalyptic number.

It is an amenable number.

144700397 is a deficient number, since it is larger than the sum of its proper divisors (117103).

144700397 is a wasteful number, since it uses less digits than its factorization.

144700397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117102.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 144700397 is about 12029.1478085524. The cubic root of 144700397 is about 524.9967008107.

The spelling of 144700397 in words is "one hundred forty-four million, seven hundred thousand, three hundred ninety-seven".