144457705 has 8 divisors (see below), whose sum is σ = 198113472. Its totient is φ = 99056688.

The previous prime is 144457697. The next prime is 144457711. The reversal of 144457705 is 507754441.

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 144457705 - 2³ = 144457697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2063647 + ... + 2063716.

It is an arithmetic number, because the mean of its divisors is an integer number (24764184).

Almost surely, 2^144457705 is an apocalyptic number.

It is an amenable number.

144457705 is a deficient number, since it is larger than the sum of its proper divisors (53655767).

144457705 is an equidigital number, since it uses as much as digits as its factorization.

144457705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4127375.

The product of its (nonzero) digits is 78400, while the sum is 37.

The square root of 144457705 is about 12019.0559113435. The cubic root of 144457705 is about 524.7030278132.

The spelling of 144457705 in words is "one hundred forty-four million, four hundred fifty-seven thousand, seven hundred five".