144385715 has 8 divisors (see below), whose sum is σ = 173365920. Its totient is φ = 115439872.

The previous prime is 144385699. The next prime is 144385733. The reversal of 144385715 is 517583441.

144385715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 144385715 - 2⁴ = 144385699 is a prime.

It is a super-2 number, since 2×144385715² = 41694469392122450, which contains 22 as substring.

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, 1802 + ... + 17088.

It is an arithmetic number, because the mean of its divisors is an integer number (21670740).

Almost surely, 2^144385715 is an apocalyptic number.

144385715 is a deficient number, since it is larger than the sum of its proper divisors (28980205).

144385715 is a wasteful number, since it uses less digits than its factorization.

144385715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17181.

The product of its digits is 67200, while the sum is 38.

The square root of 144385715 is about 12016.0607105657. The cubic root of 144385715 is about 524.6158520145.

The spelling of 144385715 in words is "one hundred forty-four million, three hundred eighty-five thousand, seven hundred fifteen".