144267394 has 8 divisors (see below), whose sum is σ = 216580860. Its totient is φ = 72073776.

The previous prime is 144267391. The next prime is 144267433. The reversal of 144267394 is 493762441.

It can be written as a sum of positive squares in 2 ways, for example, as 130302225 + 13965169 = 11415^2 + 3737^2 .

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

It is not an unprimeable number, because it can be changed into a prime (144267391) 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, 26889 + ... + 31804.

Almost surely, 2^144267394 is an apocalyptic number.

144267394 is a deficient number, since it is larger than the sum of its proper divisors (72313466).

144267394 is a wasteful number, since it uses less digits than its factorization.

144267394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59924.

The product of its digits is 145152, while the sum is 40.

The square root of 144267394 is about 12011.1362493313. The cubic root of 144267394 is about 524.4725090348.

The spelling of 144267394 in words is "one hundred forty-four million, two hundred sixty-seven thousand, three hundred ninety-four".